Check engine light

[Longhaul412]

Well, after only 384 miles, my check engine light came on.
Was fine when I got home last night, but when I started her up this morning, the engine light wouldn't go out.
Drove up to the dealer's and dropped it off. Got a loaner from them, but it's nowhere near as nice as the CX-7.
All of the mechanics were asking how I liked it, and there was a couple in the parking lot asking about it, they were thinking of getting one as well.
Will keep you posted as I find out what the problem is.

BTW, got my first chance to evaluate gas mileage this morning as well, came out almost exactly 21mpg. Not too bad, about a 50/50 split city/hwy, and that includes I'm sure a little more "goosing" the gas than I normally do as I'm still trying to get the feel of the car.

[080669]

Well, after only 384 miles, my check engine light came on.

Best of luck! I finally got mine last night, Black Cherry Mica AWD GT.

Let us know what the docs say.

[Longhaul412]

Update on the check engine light.
First, gotta love my dealer, dropped it off about 7:30 this morning, got a loaner, and they called about 1:30 and said it was fixed.

Apparently it was a problem in the emmisions system. There is something called a leak detection pump that check the vehicle for exhaust system leaks, and this pump was indicating a leak. They tested the vehicle, could find no leaks, and determined the pump was faulty. Swapped it out for a new one, and I'm on my way to pick it up.

[ATLMZ6]

Congrats on the CX-7! How strong does the motor feel to you?

[Longhaul412]

Congrats on the CX-7! How strong does the motor feel to you?

I've got to admit I'm surprised by the motor. It is obviously not a big six or a small 8, so "strong" isn't exactly how I'd describe it. Quick is a better word. It lacks the raw power of a larger engine, but for a vehicle this size, it is amazingly zippy. Step on the throttle, and engine response is immediate. Once the turbocharger kicks in, you can definantly tell a difference.
I'm pleased with the engine, in this application, I think it works well. I might not set any new drag times, but from a light, I can get ahead of most traffic. At all speeds, the engine has surprised by 1st how quick it is to react to the throttle, and 2nd how well it manages the power that is available.
To date, I haven't had the feeling at all that I need any more that what the engine can give me. Mazda's done a great job with this one I think

[080669]

"strong" isn't exactly how I'd describe it. Quick is a better word.

I definitely agree with you on this. I got my AWD GT Thursday night last week.

The only time the CX-7 feels underpowered to me is right off the line. However, I've been noticing that I'm way ahead of the pack after the light turns green. It's not like I'm trying to zip ahead of them... in fact, I'm trying to take it easy off the line, to get a smooth acceleration when the turbo kicks in. The CX-7 just starts going and accelerates strongly without little pauses or lurches for the gears to change.

On the interstate, I always have passing power whether I'm going 50 or 80. I can be passing someone at 80 when a little speed demon appears in the rear view mirror. No prob, I zip ahead till it's clear, change lanes, and let the guy behind me go on his merry way. The v6 Santa Fe I drove right before cruised powerfully at 80, but it definitely wasn't zipping ahead of anything at those speeds.

I keep reading how heavy the CX-7 is, but it just feels light to me. Whether accelerating from a complete stop, or cruising on the interstate, or taking the cloverleaf onramp (and ending up at interstate speeds)... it feels light. That's why I zip ahead when the light turns green... not because I'm trying to go super fast, but because the CX-7 doesn't feel bogged down by anything. On that cloverleaf onramp, the CX-7 feels much more sure-footed than the AWD Santa Fe, or AWD Escape... those felt ponderous, like when you hit the curve, it felt like you were going too fast. The CX-7, by contrast, feels like you'd be fine going faster. I don't really know how to explain it.

As I've driven the past 300 miles, it's started feeling better and better. I don't know if it's the engine breaking in, or my getting more accustomed to the feel...

Oh, about the lightness, one bad thing is the road texture and noise is more pronounced than it was before. There's a standard short cut I take that has 4 speed bumps (don't worry, i'm not plowing through a residential neighborhood, it's a business complex that makes a great short cut after hours), and I feel those speed bumps more than I did before. It's not wind noise... that's not bad at all. It's the road coming up through the tires.

My CX-7 has the Turanza's that tirerack reported as being crappy (and loud), so maybe that's part of it. I'll probably replace the tires in the autumn before snow comes around, not that we have to worry about that much in DC. But still.... why risk it?

Anyone have all weather tire recommendations? :)

[cx7mom]

Update on the check engine light.
First, gotta love my dealer, dropped it off about 7:30 this morning, got a loaner, and they called about 1:30 and said it was fixed.

Apparently it was a problem in the emmisions system. There is something called a leak detection pump that check the vehicle for exhaust system leaks, and this pump was indicating a leak. They tested the vehicle, could find no leaks, and determined the pump was faulty. Swapped it out for a new one, and I'm on my way to pick it up.


The check engine light came on at about 740 miles with my CX-7. Mazda also changed the leak detection pump to solve the problem. No problems so far so I'm hopeful that they fixed it.

[Longhaul412]

The check engine light came on at about 740 miles with my CX-7. Mazda also changed the leak detection pump to solve the problem. No problems so far so I'm hopeful that they fixed it.

I've got about 1600 miles on mine now, and no further problems.
It is interesting though that we both had the exact issue, with both problems occuring at less than 1,000 miles.

Could be the start of an ongoing problem?
Definantly something for other CX-7 oweners to be aware of and on the lookout for. What are the odds with this few CX-7's out there that 2 would already have the same issue?
Hope Mazda is taking notice.

[cx7mom]

I've got about 1600 miles on mine now, and no further problems.
It is interesting though that we both had the exact issue, with both problems occuring at less than 1,000 miles.

Could be the start of an ongoing problem?
Definantly something for other CX-7 oweners to be aware of and on the lookout for. What are the odds with this few CX-7's out there that 2 would already have the same issue?
Hope Mazda is taking notice.

My feelings exactly......I'm sure more are going to surface. I'm glad to see that you're not having any more problems. I'll repost if the problem resurfaces.

[Sveivo]

Damn, I didn't know these things were turbo! 244 HP (shocked) Damn. :D

[G-Papi]

1900 miles - no problem

244 HP of fun

[kbrennan]

Got my first CEL at 2500 miles. It was for a loose gas cap.. But it wasn't loose... Go figure.

[080669]

Oops, got the Check Engine light at around 2000 miles. I'll do a night drop tonight, and hopefully tomorrow I can post an update.

[080669]

So, mine was also for a loose gas cap, though i always twist through several clicks.

[varek]

(stfu) I only have about 27 miles on mine and the check engine also got activated. I'm taking my Cx7 back to the dealer tommorow for a check.

[080669]

(stfu) I only have about 27 miles on mine and the check engine also got activated. I'm taking my Cx7 back to the dealer tommorow for a check.

Tell him there've been two loose gas cap and two for leaky detection pumps.

Oh, and if you don't have Autolock turned on (only available if you have the little credit card remotes), you might want him to do that while you're hooked up to the computer. I think when you close the door, you hear one beep and it's primed. Then if you walk like 5 feet away, you hear a beep again and it's locked.

[wxman]

Yes, the leak detection pump is a known problem that's been reported to Mazda. My service tech said he had two other fixes yesterday, mine was the third. The problem is putting in a new sensor takes 1 1/2 hours. And, they are forced to do a 1/2 hour inspection to make sure the leak isn't real. I can live with this since the car is so great, but I'll be really pissed if it ends up being a design issue -- that is, not a bad sensor but a good sensor being triggered by something inherent. That too could be fixed, but..........

[G-Papi]

My sympathies to you guys with the problems. I've got 3100 mi with no symptoms, and my fingers are now crossed.

[cmourikis]

Guess what just happened to me after 900 miles....
Yep, Check Engine light.
Cant image its a loose gas cap, i had the light when i got in my car, drove to get gas, filled up the tank, and tightened the cap... light is still on.

[080669]

Guess what just happened to me after 900 miles....
Yep, Check Engine light.
Cant image its a loose gas cap, i had the light when i got in my car, drove to get gas, filled up the tank, and tightened the cap... light is still on.

Good luck. Let us know the verdict when you find out.

[cmourikis]

The verdict: Same as the others. Gross Evap Leak, Engine code P0455.
"tightened fuel cap".

Cant be serious! I think i know how to tighten a fuel cap. Regardless, we will see if this causes indigestion for the life of the car. The worst part was that they made me wait almost 2 hours, thanks STAMFORD.

Anyone else with this issue?

[Kansei]

Hmm that's a weird one. Maybe the way the cap is designed it is weird and makes you think it is tight when it isn't? Or maybe it sorta threads on if it is crooked so you think it is on but it isn't.

[080669]

Gross Evap Leak, Engine code P0455.
"tightened fuel cap".

Anyone else with this issue?

I think yours makes the 3rd one with this issue in these forums. I always tighten the gas cap a few turns after it starts clicking.

Since really all they did was reset the computer, I suspect there may still be an underlying issue out there.

[cmourikis]

you better believe im going to be tightening the sh*t out of it every time now. We'll see if this happens again or leads to something else. The guy mentioned something about "techline" - I guess they make the cap or the gas system... not sure. I imagine we will hear more about this as more CX7's hit the road.

[Glowspeedp5]

The verdict: Same as the others. Gross Evap Leak, Engine code P0455.
"tightened fuel cap".

Cant be serious! I think i know how to tighten a fuel cap. Regardless, we will see if this causes indigestion for the life of the car. The worst part was that they made me wait almost 2 hours, thanks STAMFORD.

Anyone else with this issue?

Sounds like a hyndia problem.......Parents hyndia do the same shit.....

[TheMAN]

wtf is a "hyndia"? :confused:

[Kansei]

Hyundai maybe? I know for a fact the sensor for the gas cap seal is really sensitive on a lot of newer Hyundais. My friend (RioRacer on here) has had his parent's XG350 CEL go on if I recall correctly because of just that.

[varek]

The dealer got the same reading in there computer with my cx7. Its an issue with the leak detection pump. they are going to schedule another service for a complete check up. They indicated that they will order the leak detection pump and install it.

[G-Papi]

you better believe im going to be tightening the sh*t out of it every time now. We'll see if this happens again or leads to something else. The guy mentioned something about "techline" - I guess they make the cap or the gas system... not sure. I imagine we will hear more about this as more CX7's hit the road.

The general rule as I understood it, and from seeing it referenced in other models manuals, was that you should tighten to three clicks. I don't think that going any further makes it any tighter. Maybe a sensitivity code in the CEL is something Mazda ought to do.

For the record, aside from turning off the light, what have service departments been doing to correct the problem, especially when they see that the cap has been properly replaced?

Also, does anyone know whether Autozone or Advance have upgraded software that includes this new model? If so, rather than going to the dealer, you could get the code read there.

[Rio Racer]

Hyundai maybe? I know for a fact the sensor for the gas cap seal is really sensitive on a lot of newer Hyundais. My friend (RioRacer on here) has had his parent's XG350 CEL go on if I recall correctly because of just that.
yea newer cars tend to have really sensitive gas caps. My kia rio also throws CELs if ya don't tighten the gas cap tightly along with my parents XG350. It happens alot when i go to NJ cause all the gas stations are full service ones by law so alot of times the bastards are in a hurry and forget to tighten the cap gap till it clicks.

[G-Papi]

AutoZone handheld unit is not updated to read the CX-7. Kept getting a "CONNECTION ERROR" They are supposed to be getting a larger unit that updates online regularly. Don't know yet whether it will have the CX-7 data in the database, though.

Was hoping that it would be an easy check and reset if the gascap issue stays troublesome. Doesn't make sense to have to go back to the dealer and either make an appointment, or wait.

I assume that Advance Auto uses the same handheld unit.

[varek]

Tell him there've been two loose gas cap and two for leaky detection pumps.

Oh, and if you don't have Autolock turned on (only available if you have the little credit card remotes), you might want him to do that while you're hooked up to the computer. I think when you close the door, you hear one beep and it's primed. Then if you walk like 5 feet away, you hear a beep again and it's locked.

I RECEIVED A CALL FROM THE LOCAL MAZDA DEALER. THEY STATED THAT THEY DID NOT HAVE TO REPLACE THE LEAK DETECTION PUMP. THEY RE- PROGRAMED THE PCM UNIT. I ACTUALLY DO NOT KNOW WHAT THE PCM STANDS FOR, BUT I WILL ASK.

[Kansei]

^^ It's the car's computer. Glad it was a nice simple fix for you, and now you can get back to zoom-zooming. I really love the overall styling of the CX7.. just gotta convince my dad to get one now haha :D

[stangmatt66]

This leak detection pump error sounds very much like the problem that affected early RX-8s (mine included). In the end it was deemed the detector was too sensitive. A few trips to the dealer for CELs and a software upgrade to change the sensor calibration, the problem went away.

[Ladyspeed6]

The same thing happened to my MS6. I had the CEL come on a few different times. Each time it said loose gas cap. I know that sucker was on tight. They replace the sensor the 3rd time, and it's been fine ever since!

[G-Papi]

In all of this, has anybody found anybody other than the dealer who has the software to read the CX-7?

[varek]

^^ It's the car's computer. Glad it was a nice simple fix for you, and now you can get back to zoom-zooming. I really love the overall styling of the CX7.. just gotta convince my dad to get one now haha :D

Yes the dealer indicated that the mazda pcm/flash is like an upgrade computer patch that calibrates the area that has the ecountered problem.(glare)

[Zoombee]

Had my "first" CEL at 250 Odo miles, 48 hours after I purchased my CX-7. I took it back and was told a P00455 code - gas cap not tight! Need to turn at least 3 clicks. The kid at the dealership I purchased from was the one that filled the tank. So when I filled the tank, I clicked it 5-6 times. Sure enough the CEL light came on again approx 48 hours after fill up. Took it back to the dealer and said it was another P00455 code. They tested the emission sensor like I've read on this thread but they couldn't find anything and they couldn't get the CEL light to come on for them. I told them I'll bring it back 46 hours after my next fill up, then maybe the light will come on for them!

[stangmatt66]

Had my "first" CEL at 250 Odo miles, 48 hours after I purchased my CX-7. I took it back and was told a P00455 code - gas cap not tight! Need to turn at least 3 clicks. The kid at the dealership I purchased from was the one that filled the tank. So when I filled the tank, I clicked it 5-6 times. Sure enough the CEL light came on again approx 48 hours after fill up. Took it back to the dealer and said it was another P00455 code. They tested the emission sensor like I've read on this thread but they couldn't find anything and they couldn't get the CEL light to come on for them. I told them I'll bring it back 46 hours after my next fill up, then maybe the light will come on for them!

Don't worry, this is the same thing that happen with the first batches of RX-8s. Mazda will come up with a ECU software update to correct the problem. Rx-8s went through at least 3 updates before the problem dissappeared.

[Zoom49]

In all of this, has anybody found anybody other than the dealer who has the software to read the CX-7?
Yes G-Papi I have a scanner that reads the CX-7. The CX-7 uses the new "Can Bus" protocol. This new high speed bus allows much faster processing speeds for the ECU. This will become the new standard for automotive computer communication for all manufactures. One of the first vehicles to use this new architecture was the Mazda RX-8. There are now at least 50 engines which use this type of communication including engines from
Ford, GM, Volvo and others. Only scanners introduced in the last year or so can communicate with "Can" vehicles. My scanner is the Actron CP9145 which I got at Pep Boys about a year ago for approx $200. Hooked it up to our CX-7 tonight and could read 93 engine parameters including rpm, load, advance, coolant temp air inlet temp intake vaccum or PSI as well as a host of other values. Your passanger can read live data while driving. Check it out here http://www.actron.com/product_detail.php?pid=16150
Any new scanner that reads "Can" will work. Have fun with your CX-7

[02589]

removed

[kbrennan]

Got 4500 miles on my CX-7. Its been in twice so far for a 455. 3 Clicks is BS. The gas cap works on the same principle as a Torque wrench, it pops when a certain ammount of torque is exceeded. Click it 100 times. It won't make a noticeable difference.

[Zoom49]

Do you know if that Actron scanner will allow the user to change settings relative to the keyless entry functions?
I dont believe it will but I will hook it up to mine again tonite to see. It will read and clear all trouble codes or pending trouble codes. I do not have the tech package on my GT. Will report tomorrow.

8/04 All you can do is read any stored codes, (Mine has none) and erase any that are present. You can also read any of 98 live data values but you can not do any programming.

[varek]

Probably some of you guys are encountering these issues:

CLUNKING NOISE WHEN SHIFTING FROM P TO R

FRONT UPPER DOOR PANEL WRINKLED ON TOP EDGE

FRONT CRANKSHAFT BOLT SERVICE WARNING

MIL ILLUMINATION WITH DTC P0463 OR DTC B1202 WITH NO MIL ILLUMINATION

POWER WINDOW AUTO OPEN / CLOSE AND ANTI-PINCH FEATURES INOPERATIVE

http://www.finishlineperformance.com/cx7/bulletins_index.html
(nuts) (nuts) (nuts) (nuts) (nuts) (nuts)

[tdf2001]

Yep. Sign me up for the wrinkled door panel and the power window auto open. I have to listen to the clinking noise when shifting...

[acesaroundagain]

My light came on at 942 miles. The dealer replaced the leak detection pump and as soon as I refilled the tank the light came on again. I made another appointment with them but the light went out after 3 days. I refilled a few days later and the light returned. I have another appointment on Thurs. They should get their act together and decide the sensor is too sensitive like the RX-8 and get it fixed. Mileage wise, I get 18 around town and 21 on the highway. I could get better but what's the use of having the thing if you don't "zoom-zoom" a little. Also have a clinking noise Park to Reverse. (enguard)

[G-Papi]

There's a tsb about the park to reverse noise lemme see if I can find the thread.

[G-Papi]

Loud clicking noise at startup is the thread in this forum.

[G-Papi]

btw - welcome acesaroundagain

[varek]

My light came on at 942 miles. The dealer replaced the leak detection pump and as soon as I refilled the tank the light came on again. I made another appointment with them but the light went out after 3 days. I refilled a few days later and the light returned. I have another appointment on Thurs. They should get their act together and decide the sensor is too sensitive like the RX-8 and get it fixed. Mileage wise, I get 18 around town and 21 on the highway. I could get better but what's the use of having the thing if you don't "zoom-zoom" a little. Also have a clinking noise Park to Reverse. (enguard)

DUDE IN MY CASE THEY DID NOT HAVE TO REPLACE THE LEAK DETECTION PUMP. ALL THEY DID WAS UPDATE THE PCM/FLASH UNIT. IT ACTUALLY CALIBRATES THE PROBLEM.
IN ADDITION TO THE PREVIOUS COMMENTS. THE FIRST TIME I TOOK THE VEHICLE FOR A LIGHT SENSOR CHECK UP. THE DEALER THOUGHT IT WOULD BE THE GAS CAP ISSUE. BUT IT TURNED OUT BEING THE LEAK DETECTION PUMP. HE EXPLAINED THAT NOW THE NEW VEHICLES HAVE A SENSITIVE FUEL DETECTION CHECK. WHAT HE MEANT WAS THAT WHENEVER YOU PUMP GAS TO THE VEHICLE YOU CAN NOT HAVE THE VEHICLE WITH THE MOTOR RUNNING OR THE KEY OF THE VEHICLE IN THE IGNITION SYSTEM. HE STATED THAT THEY WILL BE CHARGING A PENALTY FEE THE NEXT TIME YOU BRING THE VEHICLE FOR A CHECK ENGINE LIGHT RESET REGARDING THE FUEL DETECTION ISSUE. I DO NOT KNOW IF THIS IS FOR REAL BUT THAT IS WHAT HE INFORMED TO ME.

[mx5gary]

HE STATED THAT THEY WILL BE CHARGING A PENALTY FEE THE NEXT TIME YOU BRING THE VEHICLE FOR A CHECK ENGINE LIGHT RESET REGARDING THE FUEL DETECTION ISSUE. I DO NOT KNOW IF THIS IS FOR REAL BUT THAT IS WHAT HE INFORMED TO ME.

No were in the manual are these procedures spelled out. They may find it a bit hard to charge fees for their failure to advise the public.
-Gary

[G-Papi]

No were in the manual are these procedures spelled out. They may find it a bit hard to charge fees for their failure to advise the public.
-Gary

I'd like to see them try to charge me.

I do turn the vehicle off when refueling. But NOWHERE is there instruction or cause to remove the key from the ignition

The cel doesn't provide you with a code. You don't know what you're going to find until they read it.

Penalty fee my ASS!

They need to get it right!

[Otto]

My light came on at 942 miles. The dealer replaced the leak detection pump and as soon as I refilled the tank the light came on again. I made another appointment with them but the light went out after 3 days. I refilled a few days later and the light returned. I have another appointment on Thurs. They should get their act together and decide the sensor is too sensitive like the RX-8 and get it fixed. Mileage wise, I get 18 around town and 21 on the highway. I could get better but what's the use of having the thing if you don't "zoom-zoom" a little. Also have a clinking noise Park to Reverse. (enguard)
How do you people get 18 mpg in the city? I get 15.5 - 16 mpg in all city driving. Granted, it's been very hot (meaning a/c on all the time) but I don't really get on it much at all... mine's an AWD but still, I was expecting around 17-18 mpg. The only hope is that it should improve as the engine breaks in, I'm at ~1600 miles right now.

No CEL for me so far, but I do have the clicking in reverse issue plus my remote start doesn't work (already mentioned before but still haven't been motivated enough to take the car to the dealer. One of these days...)

[varek]

How do you people get 18 mpg in the city? I get 15.5 - 16 mpg in all city driving. Granted, it's been very hot (meaning a/c on all the time) but I don't really get on it much at all... mine's an AWD but still, I was expecting around 17-18 mpg. The only hope is that it should improve as the engine breaks in, I'm at ~1600 miles right now.

No CEL for me so far, but I do have the clicking in reverse issue plus my remote start doesn't work (already mentioned before but still haven't been motivated enough to take the car to the dealer. One of these days...)

TRY USING THE MANUAL GEARS FOR A CHANGE. YOU WILL SEE A BIG DIFFERENCE. IF IM NOT MISTAKEN IN EDMUNDS THEY TESTED THE VEHICLE USING THE MANUAL GEARS INSTEAD OF THE AUTOMATIC.:)

[mx5gary]

... OR THE KEY OF THE VEHICLE IN THE IGNITION SYSTEM.

Also hard to do with the tech pkg - only smartkey needed. So your SO would also have to depart the interior if she/he had a key on them. Don't know if I would trust that service dept sounds like they only want $$ not satisifed clients.

-Gary

[va_cache]

My Check Engine Light came on at 855 miles.

Dealer diagnostic - P0455 for EVAP system malfunction

They had a software update for the Power Control Module, so they upgraded the software, and said it should be ok.

[on2wheels]

I got a CEL yesterday at 400 miles. Dealer told me today that they were ordering a new gas cap. Seems a bit odd when others here said that an update to the power control module was fixing the "gas cap not on tight issue". Anyone else find that strange?

[Zoombee]

I got my "THIRD" CEL light at 850 miles!!! Same code as before. First time they told me the cap wasn't tight. Second time they couldn't find anything after testing, but I did notice the "snap-your-head-back" turbo kick wasn't there anymore. This time they are ordering me a new gas cap - it's supposed to come in today. I'll let you know 2-3 days after I gas it up again.(ughdance)

[va_cache]

Zoombee, what code did they say you had?

[080669]

How do you people get 18 mpg in the city? I get 15.5 - 16 mpg in all city driving.

Another thing to look at is the gasoline in your area. Around me, it's all 10% ethanol, which will cause lower mpg. Probably at least some of the people with the higher numbers are filling with pure gas instead of "gas-lite".

[Kansei]

Another thing to look at is the gasoline in your area. Around me, it's all 10% ethanol, which will cause lower mpg. Probably at least some of the people with the higher numbers are filling with pure gas instead of "gas-lite".

Yeah it's all 10% ethanol here too.. I doubt 10% affects the mileage too much though, since 85% ethanol yields like what.. a 20% decrease in gas mileage?

[Zoombee]

Zoombee, what code did they say you had?

Code P0455 - Evaporative Emission Control System Leak Detected (gross leak)

The tech said the new gas cap "feels better" than the original. I pick it up today. Time will tell. At least they gave me a nice Mazda3 for a loaner these past three days!

[va_cache]

Code P0455 - Evaporative Emission Control System Leak Detected (gross leak)

Same as mine.

But they had a Power Control Module software update for mine. I wonder why they didn't update yours?

[on2wheels]

Code P0455 - Evaporative Emission Control System Leak Detected (gross leak)

The tech said the new gas cap "feels better" than the original. I pick it up today. Time will tell. At least they gave me a nice Mazda3 for a loaner these past three days!


I am interested to hear how it goes with the new gas cap since that is what I am supposed to get for the same code/issue. Still waiting for it though...

[080669]

I am interested to hear how it goes with the new gas cap since that is what I am supposed to get for the same code/issue. Still waiting for it though...

Heh, as far as I know, I didn't get anything for mine, except an explanation I had to tighten the gas cap.

Oh well, at least it hasn't happened again, and I did take the opportunity to have the autolock turned on.

[Zoombee]

I hope I'm not jinxing anything but the new gas cap the dealer installed after my third CEL code P00455, seems to be working so far - 6 days now and counting! They said there seems to be an issue with some caps, and Mazda is aware of it. I'm keeping my fingers crossed that my CEL's are history.

[TheMAN]

yes, mazda is aware that there have been issues with some of the gas caps... they are currently working on a "better" gas cap to fix this problem... I've been working on half a dozen of this shit in the past month already

as for the flash update, its to fix the leak detection pump issue... its to make it operate the way it should compared to before

[nopstnz]

Wife just called, said the check engine light just came on again. First time to the dealer and they stated the gas cap was loose. BS! Now we have to drop the 7 off at the dealer tomorrow nite so they can check the 7 again for this issue.

WTF? It has like 2300 miles and already been to the dealer twice for a check engine light and oil change, this next trip will be number 3. Hope someone at Mazda get's this issue resolved, and fast. (pissed)

[copper-tone]

I found this board after purchasing my GT Copper-red CX7. Figured it was just a matter of time before my CEL popped on, and it did at 1,680 mi. After 1.75 hours at the dealer the light is still on and a new gas cap on order. I sure hope Mazda figures this problem out before we all become jaded and just drive with the CEL on.

[nopstnz]

Update to our issue. Dealer stated faulty gas cap. Ordered a new "improved" one and reset the PCM and no CEL's so far. Crossing my fingers this is the perminent fix....

[G-Mojo]

Good forum and so far lots of good information. I've been following this thread with interest as I too have the loose gas cap blues on my CX-7. First one was at 145 miles, checked the cap and it came off with less than an 8th of a turn. Dealer confirmed the code and life was good. Today at 700 miles I got the CEL again, and again when I checked the gas cap was extremely loose. I also crank the cap at least three clicks when I fill up so I'm guessing I have the faulty gas cap. I'll run it by the dealer on Friday and see if I can get this resolved.
Ironically my wife has had her CX-7 since early July with no problems at all! Maybe I'll just swap caps!:D

[G-Papi]

G-Mojo ~ Welcome to the forum. Stick around and share your experiences with us. You may be the first registered two - CX family here. Don't let your wife online, though. Somebody here will tell on you about the gas cap.

[hevysrf]

CEL at 1400 miles on a Black Cherry GT, loose gas cap, Bull Crap. From personal experience I know the mid 90's Miata was also troubled by the "Loose Gas Cap CEL", I cant believe ten years later they haven't solved the problem. Perhaps Mazda just wants sample data from the engine. I know they pissed my wife off, she says if we had bought the used Toyota Certified RX330 we wouldn't be dropping it off at the dealer. MartyD

[dhiney]

I've had my CX-7 for 2 weeks & 5 days @ 888 miles I got the infomous CEL. Called the dealer and he said it was ok to keep driving as long as the CEL wasn't flashing. I have an appointment next Friday.
Smells like a recall coming.
I don't think it's if you will get the CEL - it's a matter of when. 1st year bugs.

Update: 9/18
The CEL went out the day before the 1st service appointment. The appoint was cancelled.
1 week later the CEL came on again.
I had the service appointment this morning - The gas cap was loose at some time. When I fill up with gas I twist it at least 3-4 clicks and I have taken the cap off & on to make sure it is secure 4 times this past wee.
The dealer took the cap off, cleaned the seal, put it back on, cleared the code & checked the pressure.

This should hold for 2 - 3 days. UGH

[mazda believer]

(stfu) I only have about 27 miles on mine and the check engine also got activated. I'm taking my Cx7 back to the dealer tommorow for a check.
I too had this leak detectetion pump problem second tank of gas at 1/2 tank took to dealer twice before they took me seriously and actually looked for something it has been 2 tanks since then just over 1000 miles no more problems yet.

[Olandy]

800 miles CEL on same codes, tightened my gas cap and hoped it would go off, it hasn't. Will be traveling to dealer 2-morrow.

[cruzdreamer]

800 miles CEL on same codes, tightened my gas cap and hoped it would go off, it hasn't. Will be traveling to dealer 2-morrow.
I was told when my light came on in my 8 today...it was my gas cap...I totally did not fasten it today.......that it does not reset itself after you have corrected the problem...like tightening the gas cap. maybe same thing for the CX 7.

[billvack]

CEL light on today at 2927 miles.
Called dealer - same response -
He said with the car off - take off the gas cap - put it back on
drive it for 4-5 days - if the CEL is still on call us for appt.
I wanted to make one then - he said that it wasn't necessary and that this will probably take care of the problem
Bill

[CEW73]

i had one go off as well! think because i pulled that damn snorkel tube off of the airbox. Well i unhooked the battery to clear it...it took the cel light off but, popped the TC light on and was flashing. had to turn the wheel to the left and right and that cleared. Next the damn auto up/down for the windows wasnt working. I read the owners man and found out i had to redo the windows for the auto feature to work correctly again. crazy ass computers.

[silverone]

Got a cx-7 with 1300 miles and the light just came on. Have an appointment for next Sat. to drop it off. At least now I've got an idea of what's going on. Will get back w/ results.

[TheMAN]

CEL light on today at 2927 miles.
Called dealer - same response -
He said with the car off - take off the gas cap - put it back on
drive it for 4-5 days - if the CEL is still on call us for appt.
I wanted to make one then - he said that it wasn't necessary and that this will probably take care of the problem
Bill

like I said in the other thread... mazda usa IS aware of this problem... they are working on a fix... it seems to be an issue with the gas cap design... you need to convince your dealer to call mazda to get special instructions on fixing this issue because there's no TSBs out yet... this means mazda is not 100% sure what the problem is nor know exactly what will fix it... at this point the affected customers are the testers on a potential fix

[G-Papi]

I hope I'm not hexing myself. After 5k+ miles, no CEL. Maybe they need to find out what's different about my setup.

[TheMAN]

not all cx7s have this problem

[DecoyCarver]

The C.E.L. on our CX-7 started glowing this past Saturday. Car has 8,740 miles on it so far. It seems that there is a known problem with the fuel cap that requires a special ordered replacement. The Service Advisor at two delaerships advised that Mazda knows about the problem and they have ordered the part for our vehicle. Their customer service was just as good as for my 2005 Mercedes C230 Sport Sedan.

[dhiney]

2 weeks ago I had the CEL come on, called the dealer and had an appointment for a week later. I had the gas cap off & on 3 times that week. 1 day before the appoint the light went out. The dealer said to call back for an appointment if it comes back on. 6 days later the light has come back. New appointment for Monday AM.
Who knows what the h*ll is going on.
I'd almost rather have my 7 year BMW back then this thing.

Update: 9/18
The CEL went out the day before the 1st service appointment. The appoint was cancelled.
1 week later the CEL came on again.
I had the service appointment this morning - The gas cap was loose at some time. When I fill up with gas I twist it at least 3-4 clicks and I have taken the cap off & on to make sure it is secure 4 times this past wee.
The dealer took the cap off, cleaned the seal, put it back on, cleared the code & checked the pressure.

This should hold for 2 - 3 days. UGH

[Zoombee]

Well, a week ago my CEL came on again (4th time) at 1785 miles. This time I don't think it's the gas cap because it was replaced about a month ago and I've gone through a few tanks of gas. Anyway, since my hubby's laid up with a severely broken leg and we've got doctor appts and surgery upcoming, I'm waiting until he's home for awhile before I take it in. Also the same morning that the CEL came on, my low tire pressure warning came on. I topped off the two driver side tires (earlier that morning I had to drive through glass and debris at an accident site) and the light went off. Two days later the low pressure light came back on and after refilling the same two tires, it stayed on. The next afternoon it just went off. Maybe the day and tires were warm enough to increase the pressure in the tires or does it go off after so many starts? AND on top of all this, the dealership I bought from near my home was sold and is no longer a Mazda dealer so I'll have to take it to the one near my work. Oh well, what next? (bang)

[TheMAN]

if they put in the same gas cap as the original instead of an updated one, then its very likely the "CEL" will come back again

like I said ALREADY, you need to tell them that this is a known issue and that they MUST call mazda for further repair instructions

[02589]

removed

[Tech711]

Just Hit 600 miles and the check engine light is on.. Ill be calling the Dealer today to bring it in for service, Ill post the results ASAP
This looks like its a problem right outta the gate! Not good for PR

[codecraig]

Check Engine Light on at 2,450 miles. Dropped it off at the dealer....should hear something today. Wouldn't think it was the gas cap since the light came on about 2 weeks after I had filled up.

we'll see.....

[Unit 91]

So far my CX has been in the shop almost 30 days. Owned it about 3 months. Several CELs. Two different gas caps. One tranny cooler. One windshield.

So far the CELs have been due to the gas cap. First they blamed it on me. Then they replaced the cap. Then they replaced the cap again. For some reason the threads on the cap don't mesh well with the fill neck and plastic is being chewed up and deposited in my gas tank. Grrr...

[codecraig]

Got the call from the dealer (or should I say, I called the dealer yesterday afternoon). Appears Mazda has said that they are having problems with the gas caps sealing, so they overnighted a new gas cap to the dealer.

The dealer will try the new cap this morning....and hopefully this will be the end of it :)


p.s.
is this the kind of stuff to expect when purchasing the first year of a new model? i always told myself I wouldn't do it, but somehow I did!

[02589]

removed

[Kansei]

^^ yeah.. and does the CEL affect the car in any way other than having a light on? does it kill gas mileage, slow the car to a crawl, or anything?

[G-Mojo]

I had posted a couple of weeks ago that I had experienced the CEL twice, at about 145 and 700 miles respectively. The service manager did everything by the book and worked with Mazda to document the problem. Today they notched the gas cap to form a tighter seal and trained about three of their techs. The whole process, including training, took about 20 minutes. The service manager told me he expected Mazda to issue a recall on the gas caps but the fix should resolve any future gas cap related CELs on my 7. Kudos to Heritage Mazda here in Maryland for what I think was an outstanding job of addressing the problem and following through with excellent customer service.

[GraniteGreyCX7]

Hi all,

My wife's CX-7 has the check engine light illuminated yesterday with less than 1,000 miles. She had it just over 2 weeks. Guess no one is immuned from this CEL issues.

Now I like to know if anyone has received the fix from the dealership that seems to resolve CEL issue permanantly? If so, please share what your dealership did. My wife has scheduled a check up tomorrow morning so I am hoping that we can have an idea what to tell the dealer to fix.

Thanks in advance!

Joe

[TheMAN]

if after the gas cap replacement and the "CEL" comes back on with the same code, it maybe a bad leak detection pump... so if that happens to you, have them test it out.... also there's a flash update for the ECU that fixes a detection problem with the leak detection pump, so have them do that also

[CX7_Scott]

My dealership knew of the CEL/Gas Cap issue and replaced it the day after I took delivery - before I got a CEL warning. Just over 1K-miles here and no CEL. Crossing fingers.

[GraniteGreyCX7]

Hi all,

My wife's CX-7 has the check engine light illuminated yesterday with less than 1,000 miles. She had it just over 2 weeks. Guess no one is immuned from this CEL issues.

Now I like to know if anyone has received the fix from the dealership that seems to resolve CEL issue permanantly? If so, please share what your dealership did. My wife has scheduled a check up tomorrow morning so I am hoping that we can have an idea what to tell the dealer to fix.

Thanks in advance!

Joe

The dealership just finished my wife's CX-7. They changed the gas cap (fortunately they have it in stock) and reset the CEL.

My wife also asked to have the auto lock/arm feature turned on when you walked away from the car and shut all doors. She reported that the technician shown her how to use it and it works!

Only thing the dealership did not do was to adjust the AUTO light sensor's sensitivity. At first they flat out said it cannot be adjusted, but I informed my wife that on Section 5-53 of the owner's manual, the sensor can be adjusted. Now the svcs mgr said he's going to call Mazda USA to find out if this can be done too.

The guy has no clue. Thanks to the combined knowledges of this forum, you just need to know what to ask for b4 your walk in, and demand it.

Thank you.

[acesaroundagain]

They are performing the software updates to the computer modules to fix the CEL problem. The gas cap replacement was bogus. I hope this works. Now if they can just get my Sirius working again!!

[dhiney]

Day 10 with no Sirius & my 3rd CEL. Not a good day. (2,150 miles)

[Kansei]

Does the CEL affect the driveability of the car at all though, in terms of power or gas mileage? While it totally sucks that you guys are dealing with a problem on your brand new cars, if it is nothing more than the inconvenience of a light lit up on your dash, count your blessings. Many people have to deal with much worse problems with first year models.

Good luck getting stuff fixed :)

[TheMAN]

an updated gas cap has just been released so the real fix is finally here!


DTC P0455- FUEL CAP REPLACEMENT

Applicable Models

Model Starting S/N Ending S/N Model Spec CX7 2007-2007 100057 128606 RX8 2006-2007 200001 208465 MX5 2006-2007 100001 125468 Related Category/Subcategory/Symptoms

ENGINE / FUEL / IMPROPER OPERATION
ENGINE / FUEL / DOES NOT TURN OFF/WARNING LIGHT
ENGINE / FUEL / OTHERS

MTOL - 5180 Dealer Repair Information

Symptom and Conditions

Some vehicles may set MIL DTC P0455 (evaporative emission control system
leak detected-gross). If so, follow the repair procedure below:
Repair Procedure

1. Retrieve and record DTC(s) and verify stored DTC P0455.
2. Record all freeze frame data and clear any DTCs.
3. Install new fuel cap part # FEY2-42-250.
4. Run IDS PDS Evaporative System Leak Test.
5. If test passes- return vehicle to customer.
If test fails- necessary to conduct further Evaporative System Leak
diagnosis.

Part(s) Information
------------------------------------------------------------------------
FEY2-42-250 Fuel Cap

[afrost59]

Someone told me that if it were my gas cap the check engine light will go of after a couple of days. On my last fill up, it did just that. It's all clear now.

Thanks

A Frost

[TheMAN]

just because it went off, it doesn't mean its fixed or the code went away... it's still on the ECU and the gas cap HAS A DEFECTIVE DESIGN

[Kansei]

^^ but if the car runs just fine with or without the code, who cares? Does it go into like a limp mode or something just because the gas cap is "loose"?

[TheMAN]

it makes your car fail state inspection in many states

[Kansei]

it makes your car fail state inspection in many states
But if the CEL isn't on anymore, with the code still stored, you could just clear the ecu and then as long as the CEL doesn't come back on..

The only inspection I've ever had to do was the day I "imported" my car from Massachusetts to Connecticut, so I often forget about that stuff.

[TheMAN]

resetting the ECU does nothing other than clear out its emissions self tests also... it will have to test everything all over again and given time it will fail the evap test again, or if you just reset it and go to the inspection station, they can't pass it because none of the tests have been run yet!

your argument is pointless, the damn gas cap are known to be shitty (they intermittently don't seal, I've seen it happen myself... and YES the cap WAS TIGHT), get the piece of shit replaced FREE at the dealer and get this whole thing over with... no uncertainties or chances of it coming back on due to the same issue

[tool0830]

Just got my first CEL at 975 miles.
They replaced the Leak Detection Pump. ...
..I pick up my cx7 tomorrow from dealership.

[Kansei]

your argument is pointless

thanks for making the forums such a friendly place :)

but anyway. I guess what I was trying to say (and thought I did) was that if the CEL is off, doesn't that mean the test was run and there is no longer an issue? Therefore, resetting the ECU and letting it run tests again shouldn't turn up anything, but if the CEL does come back on, then yeah back to the dealership to get it fixed. I guess people don't feel like having to do anything like that on a new car, which does suck I guess.

Just for confirmation: Mazda does have a permanent fix for this, right? Either a new cap or leak detection pump, or both?

[dhiney]

My CX-7 is at the dealer today for it's 3rd CEL. The dealer called MazdaUSA about the gas cap. I printed out this forum to show him what some of the problems are.

MazdaUSA said the warehouses have a new redesigned gas cap as of last Monday. They said no one should have known about the redisgn till it was in stock. The dealer is having one sent overnight hopefully to resolve the problem.

[TheMAN]

thanks for making the forums such a friendly place :)

but anyway. I guess what I was trying to say (and thought I did) was that if the CEL is off, doesn't that mean the test was run and there is no longer an issue? Therefore, resetting the ECU and letting it run tests again shouldn't turn up anything, but if the CEL does come back on, then yeah back to the dealership to get it fixed. I guess people don't feel like having to do anything like that on a new car, which does suck I guess.

Just for confirmation: Mazda does have a permanent fix for this, right? Either a new cap or leak detection pump, or both?

didn't I already say the problem is INTERMITTENT but still is a problem?

the LDP is a whole other issue, they're just a piece of ford made shit, but the failure rates of those are low compared to the gas caps

[dhiney]

My CX-7 is at the dealer today for it's 3rd CEL. The dealer called MazdaUSA about the gas cap. I printed out this forum to show him what some of the problems are.

MazdaUSA said the warehouses have a new redesigned gas cap as of last Monday. They said no one should have known about the redisgn till it was in stock. The dealer is having one sent overnight hopefully to resolve the problem.

My dealer just called and told me they replaced the gas cap with the "redesigned" cap & there is a new computer update that they did.

Hopefully this will stop the ever happening CEL's.

[xavier]

Yay....I got my first cel I guess. My wife called me and said that an orange exclamation point came on and stayed on. I'm assuming its the cel. Yay...maybe I'll get a Speed6 as a loaner.

[C-Man]

My CEL came on at around 400 miles. The dealer said it was probably the leak detection system and was willing to give me a loaner while they worked on it. However - I asked them to run diagnostics before going any further and it turned out to be the gas cap. The mechanic said you really have to twist these ones. Weird part was that I gassed up on a Wed and the light didn't come on until Sat. Well, at least the dealer was very willing to assist. Will advise if the problem returns.

[TheMAN]

Yay....I got my first cel I guess. My wife called me and said that an orange exclamation point came on and stayed on. I'm assuming its the cel. Yay...maybe I'll get a Speed6 as a loaner.

uhh, that light is just telling you the tires are low
look at it carefully, it looks like a cutaway of a tire!

[jmhumr]

Well my CEL came on at 850 miles. Dealer replaced gas cap and all is good...for now anyway.

[Zoombee]

My last post on 9/16 was about my 4th CEL. Finally got it to the dealer for another fix, like so many others, they replaced the Leak Detection Pump. The mechanic told me "Mazda said to replace it since I already had a new gas cap." Hope this does the trick! BYW, during this past month the CEL has gone off & back on several times so as stated in early posts, the light will go off after a certain number of restarts-seemed like about 50 to me!

[mixmasterlove]

Got my 1st AND hopefully last CEL today at 320 miles, called the dealer and have to bring it in next week, hopefully it will be a quick and easy fix.

[G-Papi]

6k and no CEL so far. It's kind of funny since mine was one of the early ones (purchased June 6th.) It does, however, go in on Monday to get the drive shaft replaced.

[acesaroundagain]

On my fifth CEL light. All for the same reason. First they changed the leak detection pump, then they reset it, didn't do anything else (said my gas cap was loose, yeah right!) Next came the new gas cap, then the new software update, now yet another CEL light. I've got 4000 miles on the vehicle. At least I'm making a lot of new friends at the Mazda service dept. I wonder what their latest fix will be??

[02589]

removed

[jas721@epix.net]

Guess what just happened to me after 900 miles....
Yep, Check Engine light.
Cant image its a loose gas cap, i had the light when i got in my car, drove to get gas, filled up the tank, and tightened the cap... light is still on.


my light came on at 3,500 miles. took it to dealer. they replaced
bad gas cap. 4th one this week. it was tuesday.
they said a bad batch of gas caps on cx-7

[cruzdreamer]

6k and no CEL so far. It's kind of funny since mine was one of the early ones (purchased June 6th.) It does, however, go in on Monday to get the drive shaft replaced.

G-Papi...what's the drive shaft and what is the problem with it? Just curious. No CEL yet...1500 miles on her.

[1Sleepy93]

4200mi and all is well.

[G-Papi]

G-Papi...what's the drive shaft and what is the problem with it? Just curious. No CEL yet...1500 miles on her.
There's a TSB on it . . . let me look . . . it's on early models (I got my CX in June) where there's a metallic "clank" the first shift from park when everything is cold.

Mazda designed a new driveshaft with a damper that was standard for all the later models. There was a thread . . . lemme see

[G-Papi]

Thereya go. . .
http://www.mazdas247.com/forum/showthread.php?t=123642642

Mine was replaced today with the modified version at no charge.

There was a several week delay for the part, which was backordered for a while.

[cmourikis]

Light came back.. had it once at 1k.. its back now that im at 11k.

[BLKCHRRYrose]

Day 10 with no Sirius & my 3rd CEL. Not a good day. (2,150 miles)

I just wanted to ask you if you are still having issues with Sirius...also wanted to see if your CX-7 came with a 30 day sirius trial when you first purchased it. I may have solution for your from my dealer for the lack of Siruis service.
(cheers2)

[snorris]

I've had the CEL twice now, the first was at around 250 miles and the second at 2550 miles. The first time, dealer said it was the gas cap not fastened securely. OK, I can buy that since I was still on the first tank of gas and the dealer is who filled it up. The second one is still on as I'm waiting to see if in fact it will go off on its' own as the dealer has told me... make sure the cap is securely tightened and go through several start/driving cycles. Like many others here, I always turn the cap around 3-4 times so I know it's secure.

Now I recall someone mentioning the CEL condition being mentioned in the owners manual, so I went looking and found this:

The check engine light may come on in the following cases:
1) The fuel tank level being very low or approaching empty.
2) The engine's electrical system has a problem.
3) The emission control system has a problem.
4) The fuel-filler cap is missing or not tightened securely.

After seeing item #1, I thought what the heck... why on earth would Mazda consider low fuel level as a CEL condition? Then I had a revelation... normally I fill up before reaching a 1/4 of a tank remaining, but both times I've had the CEL condition I had let the fuel level go below a 1/4 of a tank. Now I'm wondering if anyone else who has experienced the CEL condition has noticed this. If this is happening due to letting the fuel level go near empty, that's total nonsense.

[1Sleepy93]

I've gone pretty much all the way to E on every tank and never had a CEL with 4200+ miles now. It does have a low fuel light so I'm not sure what that CEL condition stated in the manual is all about.

[mixmasterlove]

I just got back my car from the dealer, my CEL was for the GAS CAP, so they replaced it.

[xavier]

uhh, that light is just telling you the tires are low
look at it carefully, it looks like a cutaway of a tire!
Yeah I noticed that when I got in the car. I now have a cel but I havent checked the mileage. Ill take her in this weekend for a check up and to have the autolock turned on.

[G-Papi]

OK guys. Here's my question. My CX-7 is an early production model (purchased early June.) So it probably has the gas cap that's causing CEL's for everybody else - only on mine it hasn't. I'm at 6k miles.

Should I ask for a new cap, or just leave the darn thing alone, and hope for a continuation of my lucky run?

[1Sleepy93]

OK guys. Here's my question. My CX-7 is an early production model (purchased early June.) So it probably has the gas cap that's causing CEL's for everybody else - only on mine it hasn't. I'm at 6k miles.

Should I ask for a new cap, or just leave the darn thing alone, and hope for a continuation of my lucky run?

I'd leave it alone. Picked mine up in July and no issues with mine at 4700mi thus far.

[cx7myfirstmazda]

Got mine at 4k, but I had a Hyundai that had the same problem with the CELs and tighten the cap again and light came off a couple days later. But just like G-papi should I ask for the cap even the light came off.

[xavier]

Mines in the shop for several problems now. :( CEL included

[Zoombee]

On my fifth CEL light. All for the same reason. First they changed the leak detection pump, then they reset it, didn't do anything else (said my gas cap was loose, yeah right!) Next came the new gas cap, then the new software update, now yet another CEL light. I've got 4000 miles on the vehicle. At least I'm making a lot of new friends at the Mazda service dept. I wonder what their latest fix will be??

OK I've got the same issue! Had the gas cap replaced in August, Leak Detection Pump two weeks ago. Now what? I know that they'll try to tell me (again) that the gas cap wasn't tight.(pissed) Come on, this is getting old!

Question: Have they, since August, improved "replacement" gas caps that they can put on?

[azcat]

OK guys. Here's my question. My CX-7 is an early production model (purchased early June.) So it probably has the gas cap that's causing CEL's for everybody else - only on mine it hasn't. I'm at 6k miles.

Should I ask for a new cap, or just leave the darn thing alone, and hope for a continuation of my lucky run?

My CEL came on this morning, at 324 miles. 40 minutes at the dealer, put on the redesigned gas cap, reprogrammed ECU. I am surprised that the dealer I bought it at didn't just do it before delivery (which was last Saturday).

TheMAN posted the dealer info that said there was a range of VINs that had bad caps, in page 7 or 8 of this thread. Check the spread and if you're in it, take it in. Why wait to get it fixed? It's free, and if the light comes on, you won't know what it's for--gas cap or something else.

azcat

[kcshaner]

Add one more to the bad gas cap issue....2,500 miles

[CXseven]

(bang) ok i got my engine light at 190 miles on my odometer, that is 2 days after the delivery of my CX-7. Returned to the dealer for warranty service, to include the wheel vibration im getting at 70+ mph. To cut the the story short, Codes pulled = PO455 "gross evaporative leak due to gas cap defect". They replaced it with the new updated gas cap, rebalance both front wheels.
The result: "Lights Out" and now drives "Smooth" as it should be for something new. Hope it stays out. (hear ya)

[dhiney]

3,197 miles and in the shop for my 4th CEL.

times 1 & 2 - tighten gas cap
time #3 - 3 weeks ago - new gas cap & gas filler pipe
Time #4 - who knows - the dealer checked and it was a different code that the gas cap but when they analyzied everything the computer was checking, every falue was "normal". Now getting Mazda Techline involved again.

I told the Service Manager about the fuel detection pump, his response was he can't replace anything underwarranty without Mazda's approval.

2 months & 4 CEL - will this problem ever be resolved?

I'm lookin into Ohio's Lemon Law just incase. In Ohio if the CEL is on you can't get your car certified under e-check, which means you can't renew your registration. So the CEL isn't just a pain in the butt, but can cause the car to sit with no registration. Mazda really needs to aggressively address this problem.

I'm happy with the dealer because I know they are trying just about everything in their power to resolve the problem.

[CXseven]

OK guys. Here's my question. My CX-7 is an early production model (purchased early June.) So it probably has the gas cap that's causing CEL's for everybody else - only on mine it hasn't. I'm at 6k miles.

Should I ask for a new cap, or just leave the darn thing alone, and hope for a continuation of my lucky run?

>> as an x-helicopter mechanic (Q/A), "I myself truly beleive in the prevention of the occurence of defects". I recommend getting it fixed/replaced before it happens. It is one of the reasons why were here sharing points.<< (thought)

[G-Papi]

>> as an x-helicopter mechanic (Q/A), "I myself truly beleive in the prevention of the occurence of defects". I recommend getting it fixed/replaced before it happens. It is one of the reasons why were here sharing points.<< (thought)

Thanks - I believe that too - may as well get it done.

[CX7_Scott]

Okay... almost at 5k miles for me and my CEL came on this morning. I was there when my dealer changed my gas cap. They were aware of the problem and replaced it with the newly designed(?) one before I took delivery.

So, I do not have any idea yet what my code will be. I'll find out soon. Grrr.

[cx7myfirstmazda]

Okay... almost at 5k miles for me and my CEL came on this morning. I was there when my dealer changed my gas cap. They were aware of the problem and replaced it with the newly designed(?) one before I took delivery.

So, I do not have any idea yet what my code will be. I'll find out soon. Grrr.
Keep up posted CX7_Scott. update on mine I haven't gotted the CEL back since dealer replaced gas cap. (first)

[CX7_Scott]

Don't know how "smart" this idea is, but I called the dealership and they asked if the CEL was blinking, I said no, I told her that I already had the cap replaced... so I'm not sure what it could be. She asked me if it was running fine. I said yes, nothing out of the ordinary.

She said it's "possible" that if the last attendant did not tighten it correctly, then it still may trigger a CEL. Now, I JUST (this a.m.) filled my tank and tightened it myself. I mentioned: "I thought that once a CEL came on, it needed to be "cleared" by the computer, right?". She said if it IS because the cap was not tightened before, it may clear itself within a few days. Something about needing to burn-through about 1/2 tank for it to register or something.

She says as long as it's running fine, give it 3-5 days and see if it goes out... if not, bring it in.

So... we'll see.

[Kansei]

If it's like the older mazdas, the light will go off but the code is still stored in the computer until it gets cleared. But yeah, if the light goes off (may take 30-60 miles) you have probably solved the problem.

[cx7myfirstmazda]

If it's like the older mazdas, the light will go off but the code is still stored in the computer until it gets cleared. But yeah, if the light goes off (may take 30-60 miles) you have probably solved the problem.
if the code stays on the computer, will that have impact down the road. say when i have to renew my registration and it has to pass smog check?

[Kansei]

if the code stays on the computer, will that have impact down the road. say when i have to renew my registration and it has to pass smog check?

Not sure about cali but I know in CT it doesn't matter if a code is stored.. they'll see that a code is stored, but if the check engine light isn't on, it isn't a current problem.

[bazooka joe]

Not sure about cali but I know in CT it doesn't matter if a code is stored.. they'll see that a code is stored, but if the check engine light isn't on, it isn't a current problem.

chris, is that true? i thought a stored code had to go through a "cycle" before it would either clear or be rejected? maybe that's just her in masshole (as you would say)?

[Kansei]

Yeah but once it is gone from the owner's standpoint (when the light goes off) it is still stored in the ECU for future reference. Once the car goes through a "cycle" without issue the light will turn off. In CT they just care if the light is on, though they do plug in to the car to read sensor data.

[cmourikis]

My light went off on its own, came back on again shortly after. Spoke with my dealer from Lodi, NJ, they told me that Mazda is aware of the situation and is manufacturing a better gas cap with a tighter seal. Once this is replaced, it will resolve the issue. ....

[GraniteGreyCX7]

CEL back on this morning at 3,444 miles. What gives since my dealer claim they replace the gas cap??

[CX7_Scott]

Granite... if you or a gas-station attendant didn't put the cap on tightly, it can trigger it. Happened to me at 5k even though mine was replaced before I took delivery... went-out on its own.

[Zoombee]

Just got my car back after taking it in for my 3rd CEL that came up on 11/1. Here's what they found - straight from the Service Repair Order:

Performed MDS inspection has multiple codes. Ran evap diagnotics found a distorted pipe to the fuel tank. Replaced fuel filler pipe. Did communications connection and harness test and rechecked. Rechecks good.

They didn't list the Code #s and I had to wait two days for the new pipe they ordered.

So far I've gotten a new gas cap, new leak detection sensor and now a new gas filler pipe. I certainly hope this is it!

[GraniteGreyCX7]

Granite... if you or a gas-station attendant didn't put the cap on tightly, it can trigger it. Happened to me at 5k even though mine was replaced before I took delivery... went-out on its own.

Scott, the thing is that we did not fill any gas these past few days, last night was fine. It rained last night til early this morning in NY and I found CEL on this morning when I drive to work.

Bummer...Is this consider manufacturer defect?

[Kansei]

Scott, the thing is that we did not fill any gas these past few days, last night was fine. It rained last night til early this morning in NY and I found CEL on this morning when I drive to work.

Bummer...Is this consider manufacturer defect?

It takes a couple "drive cycles" (anywhere from 15-60 miles of driving) for the computer to run all the tests and register a condition for a check engine light.

I would really hate to live in New Jersey with the overzealous CX-7 evap system. For those who haven't been there: you aren't allowed to pump your own gas at all, so you have to rely on the gas-boy to tighten the cap properly.

Have there been any new developments on resolving this issue from Mazda? I know people have been told about a redesigned gas cap, but don't remember if anyone actually got one yet or if it is even finished. Then some sensor was thought to be defective in some people's cars. Mazda really needs to get this fixed before the 08 model year. What a stupid little problem to hurt people's ownership experience on an awesome new model.

[kyosho26]

Got my first CEL @ 1600 miles. Just came on this morning on startup. I wonder if the gas cap has been replaced yet.

[cx7mom]

Mine is on the third time.....this is getting a little old now.

[Byrnie]

damn i bought mine saturday and the check engine light went on. I called my dealership and they said that it was probably the gas cap and that whoever pumped up my gas probably didn't click it enough. I sure hope it's not an emissions leak... oh it happened at 120miles (2 days later).

[cx7mom]

I've had the leak detection pump replaced and my gas cap modified. Let's see what Mazda suggests now. I hope they come up with a fix soon.

[G-Papi]

6500 miles, and no CEL. (knocks on wood).

I examined the gas cap, and there's no thread damage like I've heard on others. Somebody said that the bad caps were on early cars delivered to the west coast only.

[cx7mom]

6500 miles, and no CEL. (knocks on wood).

I examined the gas cap, and there's no thread damage like I've heard on others. Somebody said that the bad caps were on early cars delivered to the west coast only.

I bought mine in mid-June, but I purchased mine on the East coast. Still having a bunch of CEL issues.

[CXRabbit]

Just signed the papers for mine today and insisted when I pick up the vehicle next week that it already HAVE the new gas cap and latest TCM/PCM updates. Salesperson confirmed with service department and said no problem.

[Daytona_Jay]

1000 miles and the check engine light came on.
I'm going to drop by the dealer on Monday to have it checked out.

[cruzdreamer]

3300 miles apx. Came on one day after fill up. Will wait a few days to see if it goes out....if not will take her in.

[G-Papi]

3300 miles apx. Came on one day after fill up. Will wait a few days to see if it goes out....if not will take her in.

Sorry to hear about your CEL. They will get that issue sorted out, and hopefully it won't be too much of a hassle in a month or so. My new 6 is smooth, and by now I'm sure that all the bugs are worked out. Sitting in it was almost like coming home again.

[MITZA]

150 miles CEL, gas cap replaced now at 280 no problems on my cx

[Byrnie]

I got mine fixed and they just had to replace the gas cap

[tomkit]

8000 miles and CEL...I wonder what it is, bringing it in tomorrow to get it fixed...

[GraniteGreyCX7]

CEL back on this morning at 3,444 miles. What gives since my dealer claim they replace the gas cap??

Dealer replace the gas cap AGAIN yesterday. Hope no more CEL on anymore.

[cruzdreamer]

Gas cap replaced today...will see if that fixes the issue. I have a radio problem....goes out for a few seconds randomly throughout the day. Thought it was just the Sirius but it happens on CD's and radio.

[mwr577]

Well my chk engine light came on last night then today the light was on & the tcs light is stuck on. They have no clue why the tcs light is stuck and believe that the chk engine light is due to the gas cap. No appointments available until 12/12 (ughdance)


Of coures they think that it's no big deal!!!

[MITZA]

Well my chk engine light came on last night then today the light was on & the tcs light is stuck on. They have no clue why the tcs light is stuck and believe that the chk engine light is due to the gas cap. No appointments available until 12/12 (ughdance)


Of coures they think that it's no big deal!!!


Thats crazy last few posts from IL we get a good/bad batch? J/K keep us posted on your fix. Mine was a gas cap no biggie they had mine scanned/cap replaced 20 min in/out up here.

I made sure on my survey I noted this emission stuff concerns me I'm sure if all of us note this or call Mazda they will speed up these revisions. First year hick-ups not too bad I've had way worse with New Mitsubishi Sedans/Suvs over the last 10 years.

[gls1959]

Mine just came on at 4400 miles. It went off for one day and now its on again. The service guy said it may be a defective gas cap. I hope it is.
Will find out Monday.

[XCELR8]

700 miles and my check engine light came on last night. turned her off and retightened the gas cap, drove anther 100 miles and its still on. dealer getting a call tomrrow *sigh* NW Indiana here. last six of my VIN are 117665 which is within the range of VIN's with issues according to page 7 of this thread.

[CXRabbit]

Just read on another Mazda forum:

I was told by my dealer that there is a recall on all '07 CX-7s involving a part that is causing the cold-weather Check Engine Lights. He wasn't sure exactly what part was suspect but he said it wasn't the gas cap. I'll post more as I find out.

Interesting. I had problems with the radio button lights flickering Friday night... only thing different about that night was 1) It was way colder than it has been (below freezing) and 2) I played with the power-window lock-out button. Wonder if the cold weather related check-engine light thing could also be related to the radio button lights flickering.

[cruzdreamer]

Just read on another Mazda forum:



Interesting. I had problems with the radio button lights flickering Friday night... only thing different about that night was 1) It was way colder than it has been (below freezing) and 2) I played with the power-window lock-out button. Wonder if the cold weather related check-engine light thing could also be related to the radio button lights flickering.

CX rabbit....I just had my information center wig out.....it was not blank but had all kinds of crazy things on it....it was pretty cold that morning.....went and pulled over and restarted the car and it was fine! I think it was the cold!

[gls1959]

Defective gas cap as expected. If Mazda hasn't done a recall on
this, they should soon. Even the dealer said he's stocking up
on gas caps.


Mine just came on at 4400 miles. It went off for one day and now its on again. The service guy said it may be a defective gas cap. I hope it is.
Will find out Monday.

[mwr577]

Well my chk engine light came on last night then today the light was on & the tcs light is stuck on. They have no clue why the tcs light is stuck and believe that the chk engine light is due to the gas cap. No appointments available until 12/12 (ughdance)


Of coures they think that it's no big deal!!!

Ok so I picked up cx tonight and this was the work log:
dct code P2006 swirl control.
RNR swirl control acuator and elongated holes
adjust to 2mm per tech line

[dhiney]

Here is an update of my battle with the dreaded CEL problems. I've had my CX-7 in the shop 5 times, since August, for a total of almost 3 weeks with CEL pproblems.
1. Clean gas cap
2. Clean gas cap & reset codes
3. replace gas cap
4. replace filler neck
5. replace purge valve
So far the replace purge valve seems to have worked. It's a new part as of the 1st of Dec.
The dealer has been working hard but it is really up to Mazda Techline.
I hope this helps.

[gls1959]

Looks like I may have a similar issue. They've replaced my gas cap and the Check Light is back on. It was fine until we had a couple 10 degree days.
Back to the shop we go.


Here is an update of my battle with the dreaded CEL problems. I've had my CX-7 in the shop 5 times, since August, for a total of almost 3 weeks with CEL pproblems.
1. Clean gas cap
2. Clean gas cap & reset codes
3. replace gas cap
4. replace filler neck
5. replace purge valve
So far the replace purge valve seems to have worked. It's a new part as of the 1st of Dec.
The dealer has been working hard but it is really up to Mazda Techline.
I hope this helps.

[paulduda]

I haven't enjoyed my first Mazda experience very much at all. Shortly after I got the car in August the "check engine" light came on and the cars performance markedly declined. I took it to the Mazda service department and they said the gas cap must be loose. (Although I know it wasn't, I had to go through the motions to appease them) Regardless, after "tightening" the gas cap, the car continued to perform poorly. I returned it again and went on a test drive with one of the technicians. He thought it was running poorly because I was using, as he said, "the wrong brand of gas". (I was using BP's premium gas instead of Sunoco's premium.) He assured me that if I always use Sunoco or Marathon, the car would run fine! So I tried using Sunoco 94 octane, their best. The performance remained poor. (The check engine light has been on continually this whole time) Next they told me I have to wait until all that 'bad BP gas' is flushed out and it would take several tanks. By now I'm beginning to realize they don't know what's wrong. (But miraculously they DO know that driving the car for months with the check engine light is not damaging the engine in any way!) Finally, early in December, they told me it was a defective "shutter valve" but they can't replace it yet because the part is on "national backorder". They would call when the part came in. (No call by the end of December) Finally, I called, and they told me the part is still on national backorder but that they recently learned how to temporarily fix the problem by cleaning and greasing the part. They said this fix should last at least a couple weeks before getting gummed up again and can be properly fixed with the new part. When I actually took the car in to have this procedure performed, however, the service department now said Mazda wasn't going to replace that part. He said they had been informed by Mazda that putting a little grease on the defective part was now the permanent solution. One technician told me that Mazda won't replace them because all of the CX7's have defective shutter valves. I'm sure that would be just too expensive for poor Mazda. Of course, again, the service department assured me that driving all that time with the engine light on and a defective shutter valve doesn't harm or reduce the lifespan of the motor in any way! They're sure! (Funny, that's NOT what it reads in my owner’s manual but maybe that's defective too) I asked them to put this statement is writing (Of course they couldn't do that!) Also, they told me that shifting into gear while the engine is revving at a high RPM is also fine. Yes, they told me, the shutter valve does control the RPM and is supposed to reduce it shortly after it warms up but the fact that my car’s RPM doesn’t go down isn’t caused by the defective shutter valve but that it’s winter and it’s cold outside. (Never mind that my car is parked in a heated garage) They so desperately wanted to “prove” to me that it takes 2.5 to 3 minutes for a brand new CX7 to stop revving by starting one of the new cars sitting out on the dealer lot. (That wasn't necessary since they had already told me that ALL the CX7’s are defective) They also said I have to expect these problems in the first year for a new model car. (Never mind, again, that it’s not the first year for that engine!). I'm not sure what the car will run like when I get it back later but I'm sure the "fix" will not last. (Like they told me before they got their Mazda corporate talking points). Even if it runs fine now, how much damage has been done? How much has the lifespan of the engine been reduced? No one seems to know, and if they do, they're not talking.

ps, after I just finished writing this, they called from the dealer and apologized... it's not the shutter valve. It's the "swirl control valve". (Still no replacement, just more grease)

[CXRabbit]

I saw your post on Edmunds and replied there too.

"the P2006 code means the ECU is not seeing the TSCV [Tumble Swirl Control Valve] being closed and thinks the TSCV is stuck open... it is not catestrophic but may reduce low end torque and increase emissions

mazda engineers are working on a repair kit for this problem... it will be at least mid january before it is out and a TSB will be released then as well"

link: http://www.mazdas247.com/forum/showthread.php?t=123651124&page=3

A good site to watch for TSB's (technical service bulletins) is here:

http://www.finishlineperformance.com/cx7/bulletins_index.html

[1Sleepy93]

paulduda, your deal sucks! I had an issue with gas brands, more like station actually, and they drained my tank at the dealer and filled it at their pump at no charge. Had me try a different station and all has been well since.

[cx7mom]

I just received a card in the mail from my dealership that the CX7 has been officially recalled for the gas cap.

SORRY, I JUST REALISED THIS IS A REPOST.

[livingstoncm]

Well, my check engine light came on today. My Mazda only has about 850 miles on it. I live in Texas and we are going through a winter blitz, so I do not know if the drop in temperature has anything to do with this? I took it right in to the dealership, have not heard from them yet. Anyone know what is going on??? Should I expect "gas cap problems" or "Leak detection pump?"

[Shaz]

I am aware of this gas cap recall for the CX7. I have 451 miles and I DON'T see any CHECK ENGINE light yet (hopefully not) and have not experienced any indication of poor or sluggish performance.

The question is, should I have my dealership check into it and replace the gas cap as per the recall? I'm a little hesitant coz they might screw up something. Like the saying goes, if it ain't broken, don't fix it.

[mzdalvr]

HI all,

I'm sorry to hear people having CEL's on a brand new production car, however, this seems to be a problem across the Mazda range, particularly with the EVAP system (for Emissions). I have had about 4 trips to the dealer with my LX and they have checked everything - finally replacing most of it and the problem still happens. Gas cap is most likely the cause - at least thats the going dealership explaination, but even they don't know.

Hope everyone has better luck and maybe Mazda will address this issue - seen a lot of this on Protege's, but weird to see it on so many new cars that just came out - should tell Mazda that there is a problem somewhere ;).

[Kansei]

^^

I've actually never heard of this issue on Proteges. weird.

[1Sleepy93]

7800mi and still no issues here. (shrug)

[jrpembe]

3700 miles and my 1st CEL appeared. Dropped it off at dealer this morning, just got a call saying "Its a common problem, we don't have a fix right now (waiting for word from Mazda), come pick up your vehicle and we'll call you when we've got something".

When the light first appeared, I suspected the gas cap, stopped, tightened it - light went away for a few hours then reappeared and won't go away.

[mikey1981]

4400k and check engine light. its been around 20 degrees for a few days in a row. What triggered my 1st cel was the first day it dropped under freezing @680 miles. 2nd string of cold weather tripped it yesterday morn, then it turned off mid-day. Started teh car today no light, came on while driving into the office. Going in tomorrow for gas cap recall & check the light out

[Blue_eyed_girl5]

I have had my CX-7 for about 3 months and about 4500 miles. My CEL light came on and when I took it in to the dealership, the service techs didn't even know that there had been a recall. Pretty sad. CEL went off for a few days and then came back on. The dealership didn't even have a gas cap for the Car. We only have one Mazda Dealership up here so I am stuck going there for any problems.

[jrpembe]

Not sure if the cold weather really has anything to do with the CEL - at least not in my case. I bought my CX-7 last August. Over the past few months we've had some really (and I mean really!) cold weather here in Calgary - I'm talking -20's to -30's (celcius) for days at a time. My light didn't come on until a few weeks ago, and we were actually in the middle of a warm stretch (by Calgary winter standards), with temps above zero.

My light came on shortly after a fill-up and has been coming on/off whenever I play around with the gas cap.

PS - most recent fill up resulted in 16mpg - over 12 fill ups I am now averaging 17mpg (50/50 city highway)

[1Sleepy93]

PS - most recent fill up resulted in 16mpg - over 12 fill ups I am now averaging 17mpg (50/50 city highway)

Not too bad for the temps your driving in.

[mikey1981]

"Shutter valve was stuck open". They lubed and drilled it and now its fine. whatever the hel that means "drill" i tried to get an answer last nite but no techs were around so im going to call today.

any smart people care to tell me what they did to my ride???

[1Sleepy93]

I'm curious what "drilled" means too.

[Dklozik]

they are trying to fix the flutter valve without replacing it. My service adviser kinda explained it, but not really. Basically they are trying to fix it without replacing it. Mine kept my car for a few extra days so they could order the part and just replace it. Apparently some of these parts are troublesome and they are having problems keeping stuff in stock.

[r07cx7]

cel came on about 1000 mi had new gas cap put on cel acme on again about two weeks later dealer had to replace the gas tank filler tube, cap would not seal no more cel.

[cx-7_Girl]

I filled up my CX-7 Thursday evening (Sheetz-premium gas) and I didn't end up taking it out again until today, Tuesday. (OK, so I feel bad driving it in the snow......) Anyway, when I got in the car this morning, I noticed my CEL was on!! I have used the remote start here a few times over the past few days when I wasn't using it. I just bought the car January 2007 and have 706 miles on it. The car came from OH, since it was the only Black w/ Black leather in the area. I asked about the gas cap recall, since I did some research prior to purchasing. They told me that had already been taken care of. I'm going to call my Mazda dealer this morning and see what they have to say. I sure hope I don't regret my new purchase. I'll let you know what happens.....

[mikey1981]

I filled up my CX-7 Thursday evening (Sheetz-premium gas) and I didn't end up taking it out again until today, Tuesday. (OK, so I feel bad driving it in the snow......) Anyway, when I got in the car this morning, I noticed my CEL was on!! I have used the remote start here a few times over the past few days when I wasn't using it. I just bought the car January 2007 and have 706 miles on it. The car came from OH, since it was the only Black w/ Black leather in the area. I asked about the gas cap recall, since I did some research prior to purchasing. They told me that had already been taken care of. I'm going to call my Mazda dealer this morning and see what they have to say. I sure hope I don't regret my new purchase. I'll let you know what happens.....

my first cel was at 680 miles. dont sweat it, itll be ok ;)

[meanstreak]

my first cel was at 680 miles. dont sweat it, itll be ok ;)
OK the CEL was on since yesterday but gas cap was snug as far as I could tell. I decided to try gassing it up and puting the cap back based on what a dealer told someone to do in one of these CX7 forums. Sure enough the CEL light went out. Not sure what this means... supposedly my dealer took care of the cap predelivery or it did not need it. Also someone posted a series of VIN that had the problem and mine was not one of them. Also they indicated that cars delivered after a certain date would have the gas cap replaced. Mine was delivered after that date. I find it hard to believe mine is not gas cap related since filling it up took care of it... unless the problem is in the gas fill neck that someone else aluded to.

[cx-7_Girl]

I filled up my CX-7 Thursday evening (Sheetz-premium gas) and I didn't end up taking it out again until today, Tuesday. (OK, so I feel bad driving it in the snow......) Anyway, when I got in the car this morning, I noticed my CEL was on!! I have used the remote start here a few times over the past few days when I wasn't using it. I just bought the car January 2007 and have 706 miles on it. The car came from OH, since it was the only Black w/ Black leather in the area. I asked about the gas cap recall, since I did some research prior to purchasing. They told me that had already been taken care of. I'm going to call my Mazda dealer this morning and see what they have to say. I sure hope I don't regret my new purchase. I'll let you know what happens.....
Well, we took it to the dealer, and of course the light was off. They got the code off of the computer it read P0300 - random misfire. The service guy asked me if the car was running different or felt odd. I only drove it a short distance this morning, but nothing was noticeable. Service guy says there has been a lot of CEL, but when they check them, they can't find anything wrong. He said it could have been the gas, I guess these systems are very sensitive, so he says. So I'm keeping my eye on it. Anyone else get the P0300 code??

[XCELR8]

Only 2500 miles and this is the second trip I'll have to make to the dealer regarding the CEL. First time it was "fixed" via a new gas cap, now I don't know what it is. Getting a bit annoying taking this thing to the dealer once a month. Glad its only a lease. Anyone else have mult CEL problems after the dealer has "fixed" it?

*dealer says it might be a "swirl valve".....we'll see

[meanstreak]

Only 2500 miles and this is the second trip I'll have to make to the dealer regarding the CEL. First time it was "fixed" via a new gas cap, now I don't know what it is. Getting a bit annoying taking this thing to the dealer once a month. Glad its only a lease. Anyone else have mult CEL problems after the dealer has "fixed" it?

*dealer says it might be a "swirl valve".....we'll see
My CEL came back on, but I'm not sure what is causing it. Mazda is going to have a serious problem on there hands if they can't figure this out. I don't know about other states, but where I live a car can't pass inspection with a check engine light on. While the cars are under warranty it is not an issue.

LOL.... maybe they can just take out the bulb!!!!! (stooges)

[XCELR8]

update.... took it in yesterday and it was the swirl valve. some solenoid type thing that mounts in the throttle body and opens/closes. guess the factory mounted it in the wrong spot and the dealer had to re-tap holes and mount it in a differ location. said they've done three like that in the last couple weeks. hope this is it.

[ssteigss]

The iMRC is the valve that everyone is having trouble with .My dealer tried to "adjust it". that failed after 2 weeks. They put a new redesigned part on today so well see if that solves the problem. Dealer told me that I was the 2nd car this week that had the redrilling of the holes fail and a new part had to be ordered.

[mikey1981]

yea the last 2 posts & mine all sound like the same problem. I will keep updating if mine becomes an issue again after the "drilling"

[meanstreak]

Filling mine up with gas turns the light back off. The second time it came on was about 60 miles after a fill-up.

[CXRabbit]

Add me to the list. My engine light came on tonight. I'm having Other Issues all of a Sudden (http://www.mazdas247.com/forum/showthread.php?p=2964537#post2964537) as well. :(

[meanstreak]

Filling mine up with gas turns the light back off. The second time it came on was about 60 miles after a fill-up.

The filling up with gas remedy no longer eliminates the light though I still believe it is something fuel system related. Yesterday it when out by itself, but then back on again. I hate having to bring it now with about 2400 miles because It will need it's 3500 mile service soon. I average about 70 miles a day so that will be pretty soon. I just hope I can't do any harm driving anout 1100 miles without having it checked out.

[CXRabbit]

The other "common" problem for CEL now seems to be the IMRC Valve. My dealer confirmed so yesterday when we talked. He admitted to seeing a few CX-7 with the problem.

[shrexster]

Just got the check engine light. Dealer also mentioned he's seen a few CX-7's in due to a valve, related to the extreme cold we've been having (MI).

If I get any updates I'll post something.

[CXRabbit]

Update on my Recent CEL

I dropped off my CX-7 at the dealer last night for CEL and other issues (http://www.mazdas247.com/forum/showthread.php?t=123660076).

They code they pulled was P2006, meaning a malfunctioning IMRC (Intake Manifold Runner Control) Valve. There are two ways to go... they can fix it or replace it, but apparently Mazda can't produce them fast enough (I've heard this elsewhere too)... SO, the Service Manager told me that he HAS to do the fix first... Mazda is telling them they cannot replace it unless the fix fails.

He said they did the fix and the car is running great - no more codes. They also gave me a new PCM update... no details on the update though.

I'm going to pick up the car tonight... I'll be interested to see if the IMRC fix puts me back to the slightly better gas mileage I was getting a few weeks ago.

[Shaz]

Goodluck to you Rabbit. Hopefully, there will be no more CEL. Anyways, I thought you already had the PCM update done? Is there a newer version? I had mine done and at first, I was iffy about it since I cannot feel the boost or surge anymore but the shifting was smooth. I love it now and I feel that my gas mileage is improving. More on this on a related topic.

[CXRabbit]

I had an update right around Christmas and I THOUGHT it was the "hesitation" update because I clearly felt a difference in the boost/surge when coming from a dead stop, or during a rolling start.

But they did do another PCM Update... I don't know if it's a globally available one, or if it has to do with the IMRC Fix specifically.

[shrexster]

Just got the check engine light. Dealer also mentioned he's seen a few CX-7's in due to a valve, related to the extreme cold we've been having (MI).

If I get any updates I'll post something.


Got the car back from dealer, the CEL was do to a shutter valve. They replaced it. Also, I had this annoying vibration from the back bose speaker, I always forgot to mention it, but this time I remembered and they fixed that. Also, had the Auto headlight feature adjusted, they adjusted the sensitivity on it, now it doesn't go on as much when I go under a overpass or something.

Got the update for hesitation, it feels soooooo much better now. I hated how it switched between 6th and 5th gear around 60MPH.... now thats all gone.

[PAA]

I add my first CEL a few weeks ago. I went to the dealership. He made a few checks and reprograms the ECU. He told me it might come back and that Mazda was working on it. The day after the CEL came back.
They told me that the CEL problem could be link to the poor gas mileage I have. I don't know what it is in mpg but here in Montreal I have an average of 6l per 100km. When I go to the gas station I have the feeling I bought a Hummer.

I hope they will find the problem soon.

[UpNorth]

When I picked up my car from the dealer Friday night after having the PCM update, remote start installed & some of the other owed service, the manager told me that I should avoid idling the car unless I actually drive it as that may trigger the CEL. Apparently they have found that when the staff would run the cars on the lot just to warm them up (it is Alaska), they would end up with CEL on.

Has any one else heard that?

I don't plan on starting my car unless I'm going to drive it anyway. I recall my salesman telling me that because it's a turbo, not to let the car idle for very long in any event, just long enough to get warm.

[papaalex]

I thought somehow i was gonna be "immune" from the CEL, however my 1st came in today at almost 1800 miles... I was hoping its not a big issue, will be bringing it to the dealer tomorrow..

I can now feel the pain some of the owners here are having (pissed)

[papaalex]

CEL gone now but it was ON the whole time yesterday..

has anyone experienced the same on & off occurences of the CEL?

Thanks

[papaalex]

The code they pulled was P2006, meaning a malfunctioning IMRC (Intake Manifold Runner Control) Valve. There are two ways to go... they can fix it or replace it, but apparently Mazda can't produce them fast enough (I've heard this elsewhere too)... SO, the Service Manager told me that he HAS to do the fix first... Mazda is telling them they cannot replace it unless the fix fails.

He said they did the fix and the car is running great - no more codes. They also gave me a new PCM update... no details on the update though.

I'm going to pick up the car tonight... I'll be interested to see if the IMRC fix puts me back to the slightly better gas mileage I was getting a few weeks ago.

I brought the car to the dealer now, i have the same problem with IMRC valve.. they will have to order the parts yet & my CX7 will be staying there for the weekend until the parts arrive (hand)

[jrpembe]

Question for you fellow CEL sufferers. My Mazda dealer says "its not a big problem, we'll get back to you when we have a fix" - so how can you tell the difference between a CEL for this so called minor problem, and something perhaps more serious???

I can't keep scheduling a service appointment everytime the CEL comes on - in my case that requires a 24 hour drop off - I'd be without the vehicle half the time.

Its been three months since my first CEL and its been coming on/off almost daily since then.

This CX-7 is really starting to feel like a "beta" test vehicle. Perhaps it could have used a few more months in development and testing??

[Chris_S]

Question for you fellow CEL sufferers. My Mazda dealer says "its not a big problem, we'll get back to you when we have a fix" - so how can you tell the difference between a CEL for this so called minor problem, and something perhaps more serious???

I can't keep scheduling a service appointment everytime the CEL comes on - in my case that requires a 24 hour drop off - I'd be without the vehicle half the time.

Its been three months since my first CEL and its been coming on/off almost daily since then.

This CX-7 is really starting to feel like a "beta" test vehicle. Perhaps it could have used a few more months in development and testing??


You can go to Auto Zone and get it scanned for free. Takes about 5 minutes max.

[PAA]

CEL gone now but it was ON the whole time yesterday..

has anyone experienced the same on & off occurences of the CEL?

Thanks


Me too my car's CEL goes on anf off and I don't know why.

[CX-7 Driver]

I brought the car to the dealer now, i have the same problem with IMRC valve.. they will have to order the parts yet & my CX7 will be staying there for the weekend until the parts arrive (hand)

I have had the same problem. In the last 2 months my car has been in the shop 5 times, as my CEL has been on and off for the last 2 months. Each time it has been the IMRC valve. The first time they said the Mazda Techline told them to move the valve two inches forward to tighten a spring. Picked the car up a day later. When I got in to start the car, CEL was ON!!! They then said they would have to order me a new part and call me when it was in. After a month, I still hadn't heard from them. Called them to find out where the part was. Come to find out the Mazda Techline told them they had to now try and move the IMRC valve 2 inches back to loosen the spring and that a new part was not required to fix the problem. Took the car in and they moved it again. After about 30 miles of driving the CEL came back on. Now they said they could order me a new part. Left the car at the dealer and a week later picked it up. Finally the light was off. It stayed off for about two weeks and came back on. Car is currently at the dealer awaiting yet again a new and improved valve, which should fix the problem. I live at high altitude and was told Mazda never tested at high altitude or in a very cold climate, so they never found this problem. Apparently I will have one of the first CX-7 with this new and improved IMRC valve. We'll see.....

[mikey1981]

was told Mazda never tested at high altitude or in a very cold climate, so they never found this problem.

not surprised at all. you can tell, this car has been a different vehicle during the winter.

[Shaz]

Finally, the CEL appeared for the very first time last Fri and I have 1547 miles on the car so I called the dealership for an appointment Tuesday. On Sunday, it disappeared so I guess whatever, but I still intend to have it checked. On appointment day, it reappeared like it sensed that the car is due for checking.

It is FIXED and this is the culprit:

VSC SHUTTER VALVE TSB

ACTUATOR, VSCV

Well, I hope it doesn't reappear like a bad habit.

[jamietina]

Is there a TSB for the shutter valve issue yet? I'm having the CEL problem and my dealer acts like he's never heard of it. I'd like to cut all the crap and 10 trips to the dealer if I can just take them the info & get it fixed right the first time.

[papaalex]

not surprised at all. you can tell, this car has been a different vehicle during the winter.

I very much agree, my CEL came up when it was that "cold" here in TX (sick)

[jrpembe]

Well I'm driving my CX-7 in Calgary, Alberta. We're at 3300 feet above sea level and this winter we had several days at -30 degrees celcius. Over the past couple of weeks the temperatures have gone up above freezing and my CEL is off. Not sure if elevation and temperature have anything to do with the CEL problem, but if so, then it was probably a bad idea to buy one here! Still no word from my dealership about the original CEL visit I made two months ago. Wonder if they forgot ;)

[mikey1981]

Im pretty sure what trips the CEL, to go on and off randomly, in most cases its cold weather, is the shutter valve code.

For a full week mine went on and off, and i made a post about it a while ago (might have been one of the first reports of the shutter valve and drilling the solonoid) due to a week of extreme cold weather. I knew something was up as well, the engine wasnt running right, not that I knew what was wrong, but you could tell something was up.

[papaalex]

Apparently I will have one of the first CX-7 with this new and improved IMRC valve. We'll see.....

had my second CEL again today at 2200 miles (1st one was last month due to IMRC) this time it was due to an IMRC again! (hand) apparently they just modified the solution last month and made a "bigger hole", maybe that could also explain why i had a 2mpg drop since the last CEL :bs:

Anyway this time, the technician told me that they're going to change the "solonoid switch" which is a new part from Mazda which will be arriving next week.. I could bring the vehicle home till the part arrives..

is it really ok to drive the CX7 despite the CEL turned on? and is there really ANYONE AMONG US WHO IS IMMUNE from this CEL problem?? (protest)

[Vixen]

had my second CEL again today at 2200 miles (1st one was last month due to IMRC) this time it was due to an IMRC again! (hand) apparently they just modified the solution last month and made a "bigger hole", maybe that could also explain why i had a 2mpg drop since the last CEL :bs:

Anyway this time, the technician told me that they're going to change the "solonoid switch" which is a new part from Mazda which will be arriving next week.. I could bring the vehicle home till the part arrives..

is it really ok to drive the CX7 despite the CEL turned on? and is there really ANYONE AMONG US WHO IS IMMUNE from this CEL problem?? (protest)

It is fine to drive it. The MS3's have the same issue. Seems like people who are in warmer climates may be immune from having the CEL come on.

[nkabak]

I too was concerned about the CEL.

When I asked about it, I was told that as long as it is intermittent and not constantly flashing, not to worry.

My two cents worth.
For what it is worth, I had a reflash done and the dealer said that they would order a new part. Before the part came in, I drove for about a week and there was no CEL. The temp in mid-NY state was between 15 -30 degrees Fahrenheit.

[clivo360]

I have had an interesting week. Took in the cx-7 last week to have the new shutter valve installed and the new PCM update applied. Both were applied, but when I got in my car the CEL was on! Brought it back to have the CEL code cleared and be on my way. This time they said an "oxygen sensor" was tripping off the CEL and needed a new part. This is now on backorder and my cx-7's CEL light has been on for about the past few weeks now, with no solution looming in the near future.

[correfe]

It is exactely 2 years that i have purchased a 2005 Mazda 3 GT- automatic transmission, and what do you know CHECK ENGINE LIGHT has come on. The car only has 33,300 Kms . I turned the car off in case was a miss read, but when i turned back on the light was still there. I checked all fluids, and they are all good.

Took the car to the dealer on Friday and SCAN CODE # P2188 came up - PURGE VALVE WAS STUCK and PURGE SOLENOID LEAKING and were replaced by the dealer under warranty.

25 kms down the road guess what (flame) CHECK ENGINE LIGHT (flame)

Taking it to the dealer again on Monday - since they are to busy to fix something on Saturday for a problem that looks like it was not fixed.

[correfe]

It is exactely 2 years that i have purchased a 2005 Mazda 3 GT- automatic transmission, and what do you know CHECK ENGINE LIGHT has come on. The car only has 33,300 Kms . I turned the car off in case was a miss read, but when i turned back on the light was still there. I checked all fluids, and they are all good.

Took the car to the dealer on Friday and SCAN CODE # P2188 came up - PURGE VALVE WAS STUCK and PURGE SOLENOID LEAKING and were replaced by the dealer under warranty.

25 kms down the road guess what (flame) CHECK ENGINE LIGHT (flame)

Taking it to the dealer again on Monday - since they are to busy to fix something on Saturday for a problem that looks like it was not fixed.

So after waiting 4 days for a wire harness for mass air sensor. finaly got the car back. The new codes were P2178 an P2188. Apperantly some of the mazdas have a bad ground wire that connects to the mass air sensor. Symptoms are laging in power on take off and occasional stalling.
I have now driven the car for 1000 Kms and light as not come on again.

[cruzdreamer]

Just some FYI ...The CEL should go off after a few days(certain amount of mileage)...resets itself. Double check gas cap is on tight and then wait a few days ..... should go off.

[Dalton]

The new codes were P2178 an P2188.


DOES ANYBODY have complete list of the CEL codes on CX-7 (thought)

Installed my ScanGaugeII And i'm able to read codes but without a complete list the "P2178 or P2188" would not make much sense.

(help) needed

[Zoom49]

Installed my ScanGaugeII And i'm able to read codes but without a complete list the "P2178 or P2188" would not make much sense.
(help) needed

Don't have a complete list but found this Mazda 3 doccument refering to your codes as too rich off idle.
http://www.finishlineperformance.com/mazda3/docs/0033.pdf

[Dalton]

Don't have a complete list but found this Mazda 3 doccument refering to your codes as too rich off idle.
http://www.finishlineperformance.com/mazda3/docs/0033.pdf

Some of the codes looks familiar (thought)

Here's the RX8 codes 110446- maybe they are universal (attn) Can anybody confirm that?

[Int3grity]

I received my CEL you Mofos jinxed me. According to the dealership I am having an evaparator error caused by the gas cap. I was told that this error was caused from the initial gas cap recall that the threading was worn off so it is not causing a tight seal, they would have to replace the gas gap and neck connector to the tank.

* I had them plug this into the obd port the error was something P2*** I believe*

[CX7 HAWAII]

Aloha Everyone!

I just bought a used 2007 Grand Touring Edition CX-7 with 8000 miles on it, black which looks really hot. I already put about 2000+ miles on it. I go to turn it on this morning and the check engine light comes on, so I call the dealer and they said to check the gas cap because that is like a common problem, so I did and the light is still on. Will take it to the dealer on Weds for oil change and engine light, will let everyone know what the problem was. The person that owned this before me had a problem with the AC not being cold enough, it was a bad AC pump. Thanks for sharing!

[giraffe]

Yesterday I got my first CEL at just under 4000 miles - checked the gas cap and of course that didn't put out the light (and I drove the car about 200 miles yesterday). Guess I have to call the dealership today and pray they can fix it tomorrow (because Weds I start my IM rotation which means 90+ hour work weeks and absolutely no time to take the car in until probably 2008!!! maybe i can take a sick day)