STUBBORN Misfire ...

[ColinG]

I bought a 2001 Mazda protege ES last July and since I've had it it has this random misfiring problem while driving. It doesn't happen all the time ... maybe once or twice a week at first and now about once a day. It has also "hard started" (wouldn't start for anout 15 minutes to half an hour of trying) about four times since I got it.

I've since taken it in to the dealer who diagnosed it as needing a new EGR valve, fuel flush and new plugs. Got mechanic to do it (you know how much the daelership charges!) and guess what? SAME PROBLEM. Took it to another mechanic that I was recommended to and he did a diagnostic check which revealed the same diagnosis. ("random misfiring"). He suggested that we change the leads ... did that ... same problem.

Now at my wits end as to what it may be ... mechanic seems to be kinda puzzeled as well (strange ... shouldn't HE know?? (huh) )

Anyway, just wondering if anyone out there might have experienced this and what they did to fix it? HELP! (bang)

[BlackLion]

I have an 02 Protege ES with about 85k. Mine started running choppy a few times a week and I noticed it was only when my tank was down about 1/3 full or less. I had a friend check out the codes and it was showing a missfire. The wires looked good so I just changed the plugs (NGK Iridium IX). Now it starts missfiring when it gets to about 1/2 a tank of less. I have had a couple people tell me I could be the fuel pump losing pumping pressure or even dirty injectors. I will hopefully be able to take it in to my wife's uncle's import shop this coming Friday (11-11-05). We are going to run a fuel pressure test (I think) and hopefully I will have some info on the causes. I haven't had much touble getting it started but I have had it idle REALLY low when it first starts...less than 500 RPMs.

[25FConv]

i had the same misfiring problem with my 2003 es 2.0.......i ran my codes and i kept gettin a misfire in cylinder 4. so i changed my spark plugs and maybe a few months later same thing....and then the same thing. i think it may have happened cause when i gapped my spark plugs i may have gapped them too far....not sure....then the last time it happened the pin in the egr valve wasnt closing right so that may have cause the misfires as well due to insuffiecient exhaust flow.....so i ended up changing my egr valve, i cleaned me fuel injectors
(flushing all the carbon build-up out) and i changed my spark plugs as well. also i upgraded my gas from regular (87) to super (93) cause obviosly the higher grade of the gas the cleaner the fuel burns. so ever sincve then i havent really had a problem. you can try giving that a try. hopefully it works for you like it worked for me. let me know how it goes.

[Captain KRM P5]

what about the wires and coilpacks? perhaps even a faulty ecu...

[25FConv]

yeh true that could be something else to check. it wasnt an issue with mine but i do plan on changing thos this week actually. i will let you know if there is a difference captain.

what about the wires and coilpacks? perhaps even a faulty ecu...

[Captain KRM P5]

its a thought though admittedly i have rarely heard of a coilpack going bad

[25FConv]

yeh my coild pakcs i checked today. they seemed like new...well after i cleaned up but still noproblem there.

its a thought though admittedly i have rarely heard of a coilpack going bad

[Kooldino]

Colin - do you have any mods done to the car? If so, what?

Have you had your injectors cleaned?

[solid_snake2x]

I don't know if this helps but I got a random missfire code about a month ago and it started to happen once a week and sometimes it went away but it will come back days later. Well I went and replace my coil paks($110 each) and a month later no problem no check engine codes.
good luck

PS: the dealership were I got it from said that the coils go bad even if they don't look bad.

[Diehonda]

Autozone can test the coils, but they have to run it several times because it might only hickup once in a blue moon. After a hickup yesterday, I may need to do the same. I am putting a can of seafoam in the gas tomorrow.

[gbacci]

Guys--I have a 2002 Protege ES 2.0--I have had it back to the mechanic several times because the CEL has been going on. Code says a random missfire. They change the plugs and set the timing and it is fine for about a week and then it comes back. I am an Attorney and I represent an Auto Shop in Geneva that specializes in racing. They just checked my Mazda and said that it most assurdly needs a new Ignition Coil. The IC will be installed on Monday-12/5/05--I will keep you all advised.

[Diehonda]

they run between 15 and 17 each at rockauto. I think I am going to go ahead and get a couple.

[Bijou-MP5]

any update?

[Diehonda]

I replaced my ignition coils but still have a low idle, about 525 or so. Still have a CEL too but no time to have it ran as of yet. Once I run it and see what is going on I will update further. The idle and misfire is better than before, the idle is just low. I am thinking gap but could end up with an all new thread.lol

[Brian MP5T]

Wow, It seems that the car is only good for 3 Years and then they all go to shit!

[Bijou-MP5]

I replaced my ignition coils but still have a low idle, about 525 or so. Still have a CEL too but no time to have it ran as of yet. Once I run it and see what is going on I will update further. The idle and misfire is better than before, the idle is just low. I am thinking gap but could end up with an all new thread.lol

were you able to get rid of low idle problem?

[boostisgood]

Wow, I was unaware you could set timing on an DIS car. Anyways, if your getting a low idle and a "random" misfire (would be code p0300) you got some serious issues.

If you value the car, dont take it to a "mom and pop garage" where the grease monkey is gonna look at it and tell ya to change the plugs. Your car needs Diagnosed by a performance tech.

[Diehonda]

Haven't been able to do anything yet. No misfire still though. I am going to check it out Sunday. As it is my next day off. Dang daylight savings time. Gets dark at 5:30. I will let you all know.

[Bijou-MP5]

Haven't been able to do anything yet. No misfire still though. I am going to check it out Sunday. As it is my next day off. Dang daylight savings time. Gets dark at 5:30. I will let you all know.

any good news?

[ebmp5]

i been having the same prob's as well the low idle the miss fire's and also my car ecu is saying it's running really rich!.

what i have done so far is taken it to mazda dealer they could not find anything as why it's doing this they also said i might have a faulty iac motor that might be causing the low idle.
also clean out the egr valve, replaced spark plug's .

i have not gotten the miss fire code for awhile now all the code's i get now are system to rich.

i have a MAM turbo setup and cannot boost cuz of my prob's i being having so if i finally find the prob. i'll post it up so everybody can fix there's if not found yet.

also i replaced the o2 but that did not work as well.

[Murray]

You seem to have solved the misfire problem but I'll chime in anyway.

One of the reasons I got rid of my MP3 was an intermittent misfire problem. Since no one could reproduce it consistently, no one would replace anything. I finally traded it in April.

Well I just met its SECOND owner since then (3rd total). He seems to have the misfire fixed and surprise: it was the coil packs, just as I'd suggested to EVERYONE that worked on it. Unfortunately, now he's having other problems due to the person who had it right after me abusing it ... but that's another story.

So I guess the moral is don't discount the possibility of something causing a problem just because it's unlikely. I've heard of several 2001 Proteges having coil pack problems.

And good luck with the idle problem.

[lsdeater]

IT IS A RECALL for the 3rd gen coil packs guys!!

[lsdeater]

ENJOY!

DTC P0300 (RANDOM MIS-FIRE) - 1.8L COIL PACK
Applicable Models
Model Starting S/N Ending S/N
1999 PROTEGE X0000000 Y0305744
2000 PROTEGE X0000000 Y0305744
1999 PROTEGE X0000000 Y0305744
2000 PROTEGE X0000000 Y0305744

Mil on DTC P0300 stored in memory, customer may or may not
experience a rough idle condition.

Condition may be caused by a failed solder joint between the power
supply terminal and the circuit board within the coil pack due to
thermal stress.

A gel cover was added to the circuit board starting:
August 1, 2000 - begining with VIN No. JM1BJ221*Y0305744

Coil can be identified by Lot No.(ink stamp) on each coil:

EXAMPLE: 081, 0=2000, 8=Aug, 1=Week or the 1st week of Aug. 2000.

[Bijou-MP5]

You seem to have solved the misfire problem but I'll chime in anyway.

One of the reasons I got rid of my MP3 was an intermittent misfire problem. Since no one could reproduce it consistently, no one would replace anything. I finally traded it in April.

Well I just met its SECOND owner since then (3rd total). He seems to have the misfire fixed and surprise: it was the coil packs, just as I'd suggested to EVERYONE that worked on it. Unfortunately, now he's having other problems due to the person who had it right after me abusing it ... but that's another story.

So I guess the moral is don't discount the possibility of something causing a problem just because it's unlikely. I've heard of several 2001 Proteges having coil pack problems.

And good luck with the idle problem.

yup, for me misfiring was the due to defective coil pack too, but I still haven't figured it out my low idle problem.
I cleaned EGR valve, it seems like my idle is little better(smooth,doesn't bounce that much but just a little), I'm taking it to dealer next week to get it check.

[Diehonda]

IT IS A RECALL for the 3rd gen coil packs guys!!


not mine as it is a P5 2.0, dang it.


Still low idle and too many other things going on. Already replaced the coils and the plugs. I will let you all know.

[Bijou-MP5]

not mine as it is a P5 2.0, dang it.


Still low idle and too many other things going on. Already replaced the coils and the plugs. I will let you all know.

seems like you and I have exact same problem.
my car almost stalled again...rpm dropped close to 0 for 2secs and it came back to normal. but don't have check engine light yet..

[Diehonda]

strange that your RPM's can drop that much and not throw a CEL. Mine warms up as normal and then once it is fully warmed and I set the idle it drops to a steady 525 but while driving it may catch for a split second and release while accelerating. Not too much but every once in awhile. I will actually have the time to have the CEL ran tomorrow and we will see.

[Diehonda]

the famous P0421 - Warm Up Catalyst below threshold (Bank 1). Now to figure out if it is the first cat or the O2 sensor. I just searched on here for awhile, so next step is popping the hood.

[Bijou-MP5]

the famous P0421 - Warm Up Catalyst below threshold (Bank 1). Now to figure out if it is the first cat or the O2 sensor. I just searched on here for awhile, so next step is popping the hood.


I had that issue too, check your pipes if you see any leak!!!
mine was having same code and I found out it was my cat pipes was having leak, so I replaced with new gasket and now that problem is gone~

[Diehonda]

I had the most difficult time unhooking the PreCat O2 sensor last night. how do you get the plug under it to disconnect from the metal plate without breaking the plug? I can't wait to get this fixed. The idle drops during deceleration now (nuts)

[Bijou-MP5]

I had the most difficult time unhooking the PreCat O2 sensor last night. how do you get the plug under it to disconnect from the metal plate without breaking the plug? I can't wait to get this fixed. The idle drops during deceleration now (nuts)

ok I got P0421 code came on too.
but I'm replacing first cat as well as EGR valve tomorrow. if it's bad o2 sensor then I don't know...but I checked my 2nd cat...it was full of ashes inside.
I don't have any rough idle problem s anymore though, but having CEL sucks.
if your mileage is under 80K, put every stock stuff under the hood and take it to dealer. they denied my warranty because I had a K&N intake.

[Diehonda]

126k miles, no warantee and tossed the stock air box.

Did you get an OEM cat? How much did it run you?

[Bijou-MP5]

126k miles, no warantee and tossed the stock air box.

Did you get an OEM cat? How much did it run you?

first cat I'm getting OEM, but 2nd cat I had to due universal ones. ask local muffler shop for pricing, but local shops don't have OEM ones, because most of time mazda offers 80K emission warranty. anyway, basically 1st cat you have to either get it from dealer or search forum who installed obx header(they remove first cat) and 2nd cat will costs you about $150~$200 depends on your local shop.
dealer asked for both cats to be replaced for $900!!!

[Diehonda]

I am going to change to O2, and if that doesn't do it I think I will just spend a bit more and get a header and be done with it. I already have an intake and exhaust so might as well.

[Bijou-MP5]

I am going to change to O2, and if that doesn't do it I think I will just spend a bit more and get a header and be done with it. I already have an intake and exhaust so might as well.

if ur car is running fine but getting CEl then it might be o2 sensor.
however, if your idle is rough then...I think it's something else.
I thought about getting header too but obx were out of stock until end of month..
anyway, if you ever need 1st cat, contact Topher, he told me he had 2 of them and one was sold and one was still available.

[ebmp5]

the famous P0421 - Warm Up Catalyst below threshold (Bank 1). Now to figure out if it is the first cat or the O2 sensor. I just searched on here for awhile, so next step is popping the hood.

u may need to do a mil fix if u are getting a po421

[Diehonda]

But I don't want a quick fix. If I get a new header I will do it because then I will know the condition of the parts I am running a bypass for. But if the cat is bad and I run the MIL then it could have a melt down and trash my whole system, let alone my mpg. But yes, that idea is in the works.

[MatP5]

I have the same miss fire problem!

Protege5 2002 with 96 000 km

At first it was the low rpm's, as if the car wanted to stall, I cleaned the EGR valve and no more low rpm.

Now I'm getting miss fires, changed the plugs, back to stock wires, but still miss fires.

It's probably the coil packs????

[Diehonda]

Yep, sounds like the coils. Any CEL? What cylinders are misfiring. Switch your coils and see if the misfires moves with it. If so then replace that coil. Rockauto has them for cheap. Just takes four days to receive them due to a two day delay.

So cleaning your EGR fixed you low idle? The valve or the pipe?

[MatP5]

Yes! Everytime, the engine light flashes a couple times, then it stays on a day or two.

Switching the coils is a good idea, I'll try that!

Yes, cleaning the egr fix my low iddle. Valve or pipe? The valve I guess, I followed the how-to on this site. Cleaned it with break cleaner then I put a few drops of oil on the spring. I noticed that before cleaning and oiling the spring, the valve would be hard to open and close. After, the valve was alot smoother.

How much do the coils costs?

Thanks

[Diehonda]

$17 and some change. pm me for 5% off discount code. The tune up thread in the MP5 area has more info on the coils. Get the Airtex, the other ones are out of stock.

Thanks for the heads up on the EGR. Haven't done my 5 yet. Have done past cars but you can't clean the spring on some.

[MatP5]

17$ each (huh)

How can it be possible, my local mazda dealership sells them for 150$ each!!!!

And my local NAPA store doesn't even have them listed!!!!!

How can rockauto sell them for 17$

Plus, I'm not that comfortable with buying off the internet.

Have you ever ordered from rockauto?

[Diehonda]

17$ each (huh)

How can it be possible, my local mazda dealership sells them for 150$ each!!!!

And my local NAPA store doesn't even have them listed!!!!!

How can rockauto sell them for 17$

Plus, I'm not that comfortable with buying off the internet.

Have you ever ordered from rockauto?


Ordered from them several times. Very pleased with the prices, parts,a dn shipping times. I get all of my spark plugs from them. They are reputable. And yes much cheaper then the dealer or napa.

Check the first post here:http://www.msprotege.com/forum/showthread.php?t=123619931&highlight=rockauto

[MatP5]

Wow, can't understand the price difference!

17$ each VS. 150$ each

At that price, I might try buying throught rockauto!

Thanks for the info!

[Diehonda]

No problem (thumb)

[Bijou-MP5]

I just got back from protegegarage to replace EGR valve and 1st cat
wow...I don't know if this is just my feeling but car runs really better, no more low idle and I have compared old EGR to new one and New one had some kind heat shield around them where old one didn't have one.
I hope my car runs forever now :)

update:...CEL came on NO!!!!!!!!! but car runs fine...'I think it's o2 sensor...
if changing o2 sensor doesn't work...I seriously don't know what to do...

[Bijou-MP5]

hey diehonda, how long did it take you to receive coil pack from rockauto?
it says they are both out of stock

[MatP5]

Great! Out of stock!

I wanted to order some!!!

[Diehonda]

are you two kidding me? I knew the standard motor products were back ordered but they said that they had plenty of the Airtex. THey best I could say is check with customer service as of when they expect to get some. Seems to be a hot item, especially at that price.



On a side note. Yesterday I replaced the precat 02sensor, cleaned the EGR, regapped my spark plugs, and reset the ECU. So far no codes, RPM's are stable and accelerates much better. Waiting for the code to come back to see if the cat is bad.

[Diehonda]

I have been searching. Do you all know where the thread is about the idle increasing and decreasing from about 1500 to 500 on its own? I am going to check some more.

The EGR cleaning thread, of course.

[wannabe]

Great! Out of stock!

I wanted to order some!!!

autozone has them for 17.99 online...

http://autozone.com/servlet/UiBroker?UseCase=C001&UserAction=performMoreDetail&Parameters=TRUE%7C%7EIGNITION+COIL%7C%7ENONE%7C%7E WELLS%7C%7E2+REQUIRED++++++++++%7C%7EFALSE%7C%7EFA LSE%7C%7E467736%7C%7E1733%7C%7EC1340%7C%7ENONE%7C% 7E%2417.99%7C%7EMAZDA%7C%7EPROTEGE%7C%7E2001%7C%7E NONE%7C%7E0.697%7C%7ENONE%7C%7EV

[wannabe]

I just got back from protegegarage to replace EGR valve and 1st cat
wow...I don't know if this is just my feeling but car runs really better, no more low idle and I have compared old EGR to new one and New one had some kind heat shield around them where old one didn't have one.
I hope my car runs forever now :)

update:...CEL came on NO!!!!!!!!! but car runs fine...'I think it's o2 sensor...
if changing o2 sensor doesn't work...I seriously don't know what to do...

how much did the new EGR cost you Bijou?

[Bijou-MP5]

how much did the new EGR cost you Bijou?

Well I don't exactly know because I bought used 1st cat and new EGR valve with installation from ken from protegegarage.
but I know it was way way way cheaper than any other local dealer.
please contact ken at protgegarage for pricing, you won't be disappointed.

[Bijou-MP5]

autozone has them for 17.99 online...

http://autozone.com/servlet/UiBroker?UseCase=C001&UserAction=performMoreDetail&Parameters=TRUE%7C%7EIGNITION+COIL%7C%7ENONE%7C%7E WELLS%7C%7E2+REQUIRED++++++++++%7C%7EFALSE%7C%7EFA LSE%7C%7E467736%7C%7E1733%7C%7EC1340%7C%7ENONE%7C% 7E%2417.99%7C%7EMAZDA%7C%7EPROTEGE%7C%7E2001%7C%7E NONE%7C%7E0.697%7C%7ENONE%7C%7EV


hmm..is that a coil pack? I one time asked autozone and they said it can't be ordered.

[wannabe]

hmm..is that a coil pack? I one time asked autozone and they said it can't be ordered.

i believe it is the same thing...its the ignition coil...

[wannabe]

Well I don't exactly know because I bought used 1st cat and new EGR valve with installation from ken from protegegarage.
but I know it was way way way cheaper than any other local dealer.
please contact ken at protgegarage for pricing, you won't be disappointed.

ok. thanks

[Bijou-MP5]

I have been searching. Do you all know where the thread is about the idle increasing and decreasing from about 1500 to 500 on its own? I am going to check some more.

The EGR cleaning thread, of course.

do you if it happenes while you are at parking gear or stop?

[Bigg Tim]

17$ each (huh)

How can it be possible, my local mazda dealership sells them for 150$ each!!!!

And my local NAPA store doesn't even have them listed!!!!!

How can rockauto sell them for 17$

Plus, I'm not that comfortable with buying off the internet.

Have you ever ordered from rockauto?

I paid $23 from the dealer for the backups I carry. They tried to tell me $100 but I told then they were looking at the wrong ones. then magically he foudn the right ones. The dealership does sell the correct packs for around 23 bucks, you got sucker'd man, those bastards!!!!

[DarKrID3r]

Hey guys i also have a misfire problem.

i own a Pro ES 2001 with 98000km / 61000miles.
Heres what it does

My idle is very stable, no problem with the o2 or something. sometimes(1 on 30 attempt), when i start my car, the it idles at 200-300 RPM then when i put gas it goes to normal forever. ( no check engine this is not the problem)

the problem happened twice to me this week. last time i was driving at around 45miles/h then i lost power from my engine. The engine wasnt BUCKing, it was very stable, but the car dropped to 40, 35,30, 25, 20 even if i downshifted and put full gas. It top speed at around 22. It was like driving a PERFECT CONDITION 30 HP car.

that happened twice to me. first time i changed my spark plugs, now i dont know what to do. having the misfire code with the scanner.

whats wrong ? coil pack problem? i get them from the dealer? how many do i need?

Thanks guys!

[wannabe]

I paid $23 from the dealer for the backups I carry. They tried to tell me $100 but I told then they were looking at the wrong ones. then magically he foudn the right ones. The dealership does sell the correct packs for around 23 bucks, you got sucker'd man, those bastards!!!!

do you have the part number?

[wannabe]

Hey guys i also have a misfire problem.

i own a Pro ES 2001 with 98000km / 61000miles.
Heres what it does

My idle is very stable, no problem with the o2 or something. sometimes(1 on 30 attempt), when i start my car, the it idles at 200-300 RPM then when i put gas it goes to normal forever. ( no check engine this is not the problem)

the problem happened twice to me this week. last time i was driving at around 45miles/h then i lost power from my engine. The engine wasnt BUCKing, it was very stable, but the car dropped to 40, 35,30, 25, 20 even if i downshifted and put full gas. It top speed at around 22. It was like driving a PERFECT CONDITION 30 HP car.

that happened twice to me. first time i changed my spark plugs, now i dont know what to do. having the misfire code with the scanner.

whats wrong ? coil pack problem? i get them from the dealer? how many do i need?

Thanks guys!

yeah sounds like the same thing. does the code tell you which cylinder misfired? if so i'd swap the packs and see if that fixes it.

[MatP5]

I paid $23 from the dealer for the backups I carry. They tried to tell me $100 but I told then they were looking at the wrong ones. then magically he foudn the right ones. The dealership does sell the correct packs for around 23 bucks, you got sucker'd man, those bastards!!!!


Don't worry, for 150$ (CAN) each, I didn't buy from the dealer. I ordered 2 ignition coils from RockAuto for 60$ (CAN) including shipping. I just can't understand the price difference. I called a few shops around here (Ottawa, Canada) and everyone said : " coils for 17 $ each, impossible! Your looking at 150$ each ..."

Ignition coils (2):

Mazda = 150$ x2 + taxes = 345$
RockAuto.com = 17$ x2 + shipping + exchange = 60$

Where's the logic in that! (boom07)

[MatP5]

Thanks to DieHonda by the way!

[Diehonda]

whats wrong ? coil pack problem? i get them from the dealer? how many do i need?


Do you have a CEL? What code? To check your ignition coil without going thru a lot of steps, switch the ignition coils, you can clear the code(take the neg cable off of the battery and pump the break three times, wait fifteen minutes and reconnect) and then see if the misfire moves to those cylinders. That way you can buy the one you need and not worry about throwing the wrong one away. I went ahead and bought two for just in case sake.

I would check:
Plugs
Ignition Coil
EGR - there is a thread on here on how to clean it
MAF - as sometimes it may play a part

I have checked all of these on mine and it turns out to be the first cat. I have P0421 code



do you if it happenes while you are at parking gear or stop?

5spd, but yes at a stop it would dip. I have it in the shop to have all of the belts changed and to see why there was a quarter sized spot of oil in the driveway. Couldn't be but a couple drops but at this point?lol I am going to jump on the next header GB and not have to worry about this dang cat/O2 sensor crap.

Seems most people that have the misfire end up having the cat code also. Am I the only person that sees that as strange as they are not directly realted but fail at the same time?


Ignition coils (2):

Mazda = 150$ x2 + taxes = 345$
RockAuto.com = 17$ x2 + shipping + exchange = 60$

Where's the logic in that!

What exchange do you mean at rockauto?

FYI -

If you are going to get a new ignition coil before 02/28/2006, pm me for a 5% discount code from rockauto. I reply with it quickly and several people have used it so far.

[Diehonda]

Thanks to DieHonda by the way!


Oh, that exchange.lol

No problem at all (thumb)

[MatP5]

Oh, that exchange.lol

No problem at all (thumb)


Sorry, I mean the exchange from US dollars to Canadian dollars. I ordered from RockAuto with your 5% discount code, Thanks again! The total was 50$ US for 2 coils including shipping, but my credit card will charge me 60$ CAN.

[Diehonda]

Sorry, I mean the exchange from US dollars to Canadian dollars. I ordered from RockAuto with your 5% discount code, Thanks again! The total was 50$ US for 2 coils including shipping, but my credit card will charge me 60$ CAN.


(hah) Oh, exchange! (hand)

[Bigg Tim]

do you have the part number?

I'll get it for ya tongiht. DO NOT, let them tell you they are 100 bucks. They should only be 20 couple bucks per coil.

[DarKrID3r]

yeah sounds like the same thing. does the code tell you which cylinder misfired? if so i'd swap the packs and see if that fixes it.

I GET MULTI-MISFIRE code, (and RANDOM MISFIRE code)

IF my EGR or my MAF were dirty, i would have an idle problem. my car have no problem with that tho.

help :)

[wannabe]

I GET MULTI-MISFIRE code, (and RANDOM MISFIRE code)

IF my EGR or my MAF were dirty, i would have an idle problem. my car have no problem with that tho.

help :)

i would try replacing the coils, replace the plugs again, check your wires, and reset the ecu....it sounds like your only running on a couple cylinders..

[DarKrID3r]

you suggest me replacing the 4 coils? i wont replace the plugs i replace them like 3 days ago.

i would like to know the part # from the dealer to be able to get them from the dealer directly for 2x$$ instead of 150 or even ordering them.

thanks

[wannabe]

you suggest me replacing the 4 coils? i wont replace the plugs i replace them like 3 days ago.

i would like to know the part # from the dealer to be able to get them from the dealer directly for 2x$$ instead of 150 or even ordering them.

thanks

its only 2 coils i believe...someone correct me if i'm wrong...but yes...thats what i would try...

[DarKrID3r]

alright thanks as soon as Tim gets us the part # from the dealer ill get ahold on those parts.

thanks again ill give you some updates on my problem later

[MatP5]

I have the miss fire problems, I changed the plugs, changed the wires. Now I'm going to try and change the coils (1 coil for two cylinders, 2 coils total). I ordered two coils from Rockauto for 50$ total, so even if it doesn't work it's not a big loss.


Don't buy coils from the dealer!!! $$$$

[wannabe]

I have the miss fire problems, I changed the plugs, changed the wires. Now I'm going to try and change the coils (1 coil for two cylinders, 2 coils total). I ordered two coils from Rockauto for 50$ total, so even if it doesn't work it's not a big loss.


Don't buy coils from the dealer!!! $$$$

look above. Tim says that he got them from the dealer for $20 a piece. he's getting us that part number.

[Bigg Tim]

Sorry guys, I did not get the number yet. I sent the local guy who has mine a message. Once he responds, I'll post it up or have him post the P/N up. Sorry for the delay.

edit: Okay, this is the number he gave me, FFY1-18-100 This should be the mazda P/N since it was what is on the box from Mazda. That is for 1 coil and should be NO MORE THEN $25. When I was looking for mine, I was quoted from $21 to $25 per coil. Like I said, the dealership I got them from charged me like $23 plus tax a piece. Oh yeah, these were for a 2001 2.0 liter motor. Which all 2.0 liter motors should have the same P/N I think. I know 01 and up are the same for sure.

[wannabe]

thanks Tim.

[DarKrID3r]

ok i called my dealer and they said that they replace the part number you gave us with the pn STY1-18-100 (or something like that). and it retails 150 CAD$ ~110US$.

i need to get someway to get them. im getting the same problem on and on.

[Bigg Tim]

ok i called my dealer and they said that they replace the part number you gave us with the pn STY1-18-100 (or something like that). and it retails 150 CAD$ ~110US$.

i need to get someway to get them. im getting the same problem on and on.

I'll call my local stealership tomorrow. You are getting jerked around man, they are only 20 couple bucks a piece. Don't pay that amount, that's what they tried to tell me, that the coils were 100+, but I told then they were wrong. So they found the right ones. If my local dealer has them for 20 couple, I'll pick 2 up and send them to you or get the number and you can have your dealer call then up, because they are definatly dicking you around. You do have a 2.0l 2000+ protege right?

[wannabe]

ok i called my dealer and they said that they replace the part number you gave us with the pn STY1-18-100 (or something like that). and it retails 150 CAD$ ~110US$.

i need to get someway to get them. im getting the same problem on and on.
thats a different part no than the one posted above...

[DarKrID3r]

yes i have a 2001 pro ES 2.0 liter.

Thanks tim

[Scooter_TO]

I just had this happen to me as well. Idle was low and rough. Car felt like it was going to stall whenever idling. Difficulty starting. Jumpy RPMs when letting off gas going down hills. Finally threw a CEL this morning. Took it to the dealership and got the same code "Random Misfiring". Replaced the EGR Valve and so far it seems okay.

Just wondering what everyone else had to pay to replace the EGR Valve. Mine ran me $275 CDN (about $240 US) for the part and labour.

Shitty :(

[Bigg Tim]

Sorry for the late response, but I called Earnhardt Mazda here in Chandler, AZ @ 1-888-210-0170 and gave them P/N FFY1-18-100 and they told me they have 1 in stock and it is $23.63 and it would be next Tuesday if I wanted another. So tell your dealerships to kiss your ass when they tell you $100 and that P/N doesn't work.

I tried another website and it told me the P/N was superceded (sp?) with FP8518100C but they could not find that number. So I say go tell them that another Mazda dealer found that P/N no problem and they quoted you $23.63 + tax. I think this number was a bit higher then what I paid, but it was a long time ago. Either way, they are trying to rip you off!

[Diehonda]

I just had this happen to me as well. Idle was low and rough. Car felt like it was going to stall whenever idling. Difficulty starting. Jumpy RPMs when letting off gas going down hills. Finally threw a CEL this morning. Took it to the dealership and got the same code "Random Misfiring". Replaced the EGR Valve and so far it seems okay.

Just wondering what everyone else had to pay to replace the EGR Valve. Mine ran me $275 CDN (about $240 US) for the part and labour.

Shitty :(


If the code comes back see which cylinders are misfiring and then switch your ignition coils, clear your CEL, adn then see if comes on again but the other two cylinders misfiring this time. Replace that ignition coil with either the P/N stated above or thru a rockauto.com

[MatP5]

STOP! Nevermind Mazda dealerships, go with www.rockauto.com (http://www.rockauto.com)

I received my coils yesterday and installed them, now only time will tell if that gets rid of the random misfires!

Rockauto Rocks! (headbang) Very good service and fast delivery (even when the part is not in stock) 2 coils cost me 50$ (shipping and taxes included)

Thanks Diehonda :D

[Scooter_TO]

so far so good. No problem starting, no rough idle, no bogging. Seems like the new EGR valve is doing the trick.

[Diehonda]

STOP! Nevermind Mazda dealerships, go with www.rockauto.com (http://www.rockauto.com)

I received my coils yesterday and installed them, now only time will tell if that gets rid of the random misfires!

Rockauto Rocks! (headbang) Very good service and fast delivery (even when the part is not in stock) 2 coils cost me 50$ (shipping and taxes included)

Thanks Diehonda :D


No problem. The site navigates well, the customer service people are really helpful, and the shipping time is awesome. And then a couple weeks later you get a discount code via email for an extra 5% off. Mine is good until 02/28/06 and will prolly order something else by then thus always having an up to date code.

Glad to hear that you had a good experience also. (thumb)

[wannabe]

Jon that is an old part number that has been superseded; that ignition coil is no longer available. I do have two of the superseded ignition coils in stock.


FP85-18-100C Ignition coil $68.94 each

Shipping by UPS ground in the 48 states $7.00

Total $75.94

State sales tax applies in Texas.

I would need a shipping address to quote you shipping outside of the 48 states.



You can order that by replying to this email. I will need a shipping address, a daytime phone number, and credit card info. You can call me toll free at (877)967-6884 with the credit card info, but please put the shipping address in an email reply.



Thanks, Richard Arndt in Parts at Mazdastuff.com

[DarKrID3r]

$17 and some change. pm me for 5% off discount code. The tune up thread in the MP5 area has more info on the coils. Get the Airtex, the other ones are out of stock.

hey i just cant seem to get them in canada for less then 150. id like to order them from your website. i have a pro ES 2001 2.0liter. which one do i need. which one did matp5 ordered?

thanks!!

[Diehonda]

hey i just cant seem to get them in canada for less then 150. id like to order them from your website. i have a pro ES 2001 2.0liter. which one do i need. which one did matp5 ordered?

thanks!!

http://www.rockauto.com/catalog/catalog.php?carcode=1374072&parttype=7060&partGroup=25&EPImodelID=8941&EPIengineID=212

And you may want to call customer service and ask if the Airtex are on back order still otherwise get the Standard Motor Products. 1-866-ROCKAUTO - 1-866-762-5288

and again, pm me for the code when you are ready. (thumb)

[Bijou-MP5]

I checked today and airtex was in stock. so I placed an order today :)
thanks diehonda.

btw, diehonda, do you still have problem? if so what kind?

[Diehonda]

I checked today and airtex was in stock. so I placed an order today :)
thanks diehonda.

btw, diehonda, do you still have problem? if so what kind?



where do I start, Oh, car problems.... Yeah low idle, mechanic has it today and tomorrow. I am going to get some headers if I can find a deal somewhere. Don't want to drop too much because I am trying to get a baffled oil pan and some stuff for my other car. Other than the low idle it seems good.

[Bijou-MP5]

where do I start, Oh, car problems.... Yeah low idle, mechanic has it today and tomorrow. I am going to get some headers if I can find a deal somewhere. Don't want to drop too much because I am trying to get a baffled oil pan and some stuff for my other car. Other than the low idle it seems good.

for me replacing EGR valve def solved low idle problme but my car shudders or try to stall when car gets warmed up at parking lot, but it doesn't happen everytime, it only happenes time to time and driving or at stop signs are totally fine.
I don't have cel yet, and hoping not to have it.
I hope your mechanic fix your idle problem.

[wannabe]

for me replacing EGR valve def solved low idle problme but my car shudders or try to stall when car gets warmed up at parking lot, but it doesn't happen everytime, it only happenes time to time and driving or at stop signs are totally fine.
I don't have cel yet, and hoping not to have it.
I hope your mechanic fix your idle problem.

the stalling thing sounds like the problems i have had in the past. i've found that spraying the pcv and hoses with some carb cleaner, and make sure that all the hoses are tight should make it better...at least for a while.

[Bijou-MP5]

the stalling thing sounds like the problems i have had in the past. i've found that spraying the pcv and hoses with some carb cleaner, and make sure that all the hoses are tight should make it better...at least for a while.

thanks for the info, but I replaced new pcv valve and checked for any leak...
but this thing only happens when I'm at parking gear and car gets warmed up.
after warmed up, no problem with driving....so I don't know what the problem is.
I really def take it to dealer when cel comes back on.
I'm thinking if it's fuel pump or battery ?

[wannabe]

thanks for the info, but I replaced new pcv valve and checked for any leak...
but this thing only happens when I'm at parking gear and car gets warmed up.
after warmed up, no problem with driving....so I don't know what the problem is.
I really def take it to dealer when cel comes back on.
I'm thinking if it's fuel pump or battery ?

well actually then its the opposite of the problem i had/have. my problem is that after it is warm if i start it up it stalls(for example, drive to the store, park car for a couple minutes while inside, come back out and start it). when its cold its starts just fine.

could be fuel pump, or injectors.

[DarKrID3r]

pmed

[Diehonda]

pmed


replied (thumb)

[DarKrID3r]

should i take the airtex which is in stock and 15$ or the STOCK which is Out of stock and 17$..? which is better the stock one or the airtex?

thanks

[Bijou-MP5]

I just ordered airtex and I think everyone have ordered airtex.

[DarKrID3r]

just ordered 2xairtex.
shipped EMS

[Bijou-MP5]

omg I replaced an order for coil pack from rockauto yesterday and it came today.. that was fast, but I missed the fedex guy so he will redeliver tomorrow.

[Diehonda]

omg I replaced an order for coil pack from rockauto yesterday and it came today.. that was fast, but I missed the fedex guy so he will redeliver tomorrow.


That is what they did with my spark plugs. Took longer to meet the UPS man then anything. (thumb)

[Diehonda]

So let's have an update. How are you all doing with this issue?

[DE31]

ive noticed most people that have this problem have 2002 (correct me if im wrong its still a little early for me) is that because of their mileage or did they replace anything from the 03 (or 02.5)

[Bijou-MP5]

for me... I have an appointment with dealer thursday.... I hope they can tell me what my problem is...

[Diehonda]

what are your symptoms?

[Diehonda]

ive noticed most people that have this problem have 2002 (correct me if im wrong its still a little early for me) is that because of their mileage or did they replace anything from the 03 (or 02.5)


Don't know if it mileage I have 130K on mine.

[ebmp5]

i still having my problem's too m
a mechanic told me i should try and change my thermostat
but i dont no

[Bijou-MP5]

mine was fixed. my coil wasn't snapped all the way and they even readjusted rpm range.
so far no problem except my caliper, but that will get fixed this tuesday as well.
ebmp5 did you take it to dealer? i know it's high costs but for me they can find problem better.

[DarKrID3r]

I got my coils from rockauto. the car runs perfectly since then. i think that my EGR valve needs to be cleaned up tho since sometimes i idle a little lower then normal. but nothing major.

thanks

[MatP5]

Cleaning the EGR got rid of my low iddle and since I changed the coils I haven't had a missfire (rockon)

[wannabe]

whelp, i finally ordered my new coils today...the other day my car was driving wonderfully, and then the next time i got in it was choppy again...so i decided something needed to be done. i'm planning on cleaning the EGR again, cleaning the IAC, replacing the PCV, and replacing the coils. hopefully my car will run like magic again :D

[Fisticuff697]

Hey guys. Im actually one of those overpaid mazda dealership techs. The only problem I have ever seen with random missfire from the bullet proof protege is problems with the egr, leaking regulator(make sure you check this), spark plugs( need to be replaced every 30k or it will take out the two coil pack) and every once in a while a leaking intake manifold gasket.ANY vacum leaks can cause missfires. ANY rich conditions can cause missfires, the computer can only see what SHOULD be there so anything that is leaking shouldnt be there and he wont see it. Lately we just got a recall for the butterfly screws....seems under a certain vin the little bastards will come loose and fly into your engine. good times. Anyways they are copper and dont cause much damage but closing the tip on the spark plug. As for fuel pumps they hardly go out. Listen do the smart thing, check fuel pressure with a gauge., if it is right ,bam, fuel is good. Check spark and ohm check the coils. If it is good, bam ,spark good. Ohm check the injectors and you guessed it, bam, if they are good your golden. give them a good bg cleaning and replace spark plugs. Also if you havent replaced your timing belt at 60k do that as well. If you still got some kind of a missfire than i would say pcm problem or internal short/open in wiring to the drivers for fuel injectors or driver for the primary side or the coil windings. Im ASE certified, mazda certified, College graduate. Just trying to help.

[wannabe]

The only problem I have ever seen with random missfire from the bullet proof protege is problems with the egr, leaking regulator(make sure you check this),

how would one check the leaking regulator?


Lately we just got a recall for the butterfly screws....seems under a certain vin the little bastards will come loose and fly into your engine. good times. Anyways they are copper and dont cause much damage but closing the tip on the spark plug.


oh yeah they do some damage...do a search around, a bunch of people have totally boomed the engine because of this, i know one guy that it happened to TWICE.


Also if you havent replaced your timing belt at 60k do that as well.

thats supposed to be done at 60k? i guess i need to recheck my manual...

[joka1]

its a thought though admittedly i have rarely heard of a coilpack going bad


unless you fry one............or 2........;)

[joka1]

Hey guys. Im actually one of those overpaid mazda dealership techs. The only problem I have ever seen with random missfire from the bullet proof protege is problems with the egr, leaking regulator(make sure you check this), spark plugs( need to be replaced every 30k or it will take out the two coil pack) and every once in a while a leaking intake manifold gasket.ANY vacum leaks can cause missfires. ANY rich conditions can cause missfires, the computer can only see what SHOULD be there so anything that is leaking shouldnt be there and he wont see it. Lately we just got a recall for the butterfly screws....seems under a certain vin the little bastards will come loose and fly into your engine. good times. Anyways they are copper and dont cause much damage but closing the tip on the spark plug. As for fuel pumps they hardly go out. Listen do the smart thing, check fuel pressure with a gauge., if it is right ,bam, fuel is good. Check spark and ohm check the coils. If it is good, bam ,spark good. Ohm check the injectors and you guessed it, bam, if they are good your golden. give them a good bg cleaning and replace spark plugs. Also if you havent replaced your timing belt at 60k do that as well. If you still got some kind of a missfire than i would say pcm problem or internal short/open in wiring to the drivers for fuel injectors or driver for the primary side or the coil windings. Im ASE certified, mazda certified, College graduate. Just trying to help.



if you want to help give us the vin numbers as well for the recall. and then dont pay attention to any mods listed as they are all fake........nothing to void any warrenties here!!

[ebmp5]

mine was fixed. my coil wasn't snapped all the way and they even readjusted rpm range.
so far no problem except my caliper, but that will get fixed this tuesday as well.
ebmp5 did you take it to dealer? i know it's high costs but for me they can find problem better.

yup to it to the dealer and they couldn't find anything they didn't charge me either

car lasted a while untill this weekend and it started triping again so i took it back.

also they reflashed my maf sensor with an update program that they have for the 02p5

[MatP5]

Change timing belt every 60k ? (boom07)

Mazda says 96k

Local reliable mecanics say 110-120k

[wannabe]

Change timing belt every 60k ? (boom07)

Mazda says 96k

Local reliable mecanics say 110-120k

glad its not just me that thought that sounded strange...

[Bijou-MP5]

60K at the inspection for timing belt

[BlkZoomZoom]

Hey guys. Im actually one of those overpaid mazda dealership techs. The only problem I have ever seen with random missfire from the bullet proof protege is problems with the egr, leaking regulator(make sure you check this), spark plugs( need to be replaced every 30k or it will take out the two coil pack) and every once in a while a leaking intake manifold gasket.ANY vacum leaks can cause missfires. ANY rich conditions can cause missfires, the computer can only see what SHOULD be there so anything that is leaking shouldnt be there and he wont see it. Lately we just got a recall for the butterfly screws....seems under a certain vin the little bastards will come loose and fly into your engine. good times. Anyways they are copper and dont cause much damage but closing the tip on the spark plug. As for fuel pumps they hardly go out. Listen do the smart thing, check fuel pressure with a gauge., if it is right ,bam, fuel is good. Check spark and ohm check the coils. If it is good, bam ,spark good. Ohm check the injectors and you guessed it, bam, if they are good your golden. give them a good bg cleaning and replace spark plugs. Also if you havent replaced your timing belt at 60k do that as well. If you still got some kind of a missfire than i would say pcm problem or internal short/open in wiring to the drivers for fuel injectors or driver for the primary side or the coil windings. Im ASE certified, mazda certified, College graduate. Just trying to help.

Overpaid? I wanna work at that dealership.

[Skoozul]

sub

[Diehonda]

sub


For what? Until you have the problem or do you have it now?

[Skoozul]

I have a problem now but I'm at work and can't read it all

[Diehonda]

Just ask the question. This thread is too many pages to read it all. It has been repeated enough times, just go for it.

[wannabe]

Just ask the question. This thread is too many pages to read it all. It has been repeated enough times, just go for it.
he has another thread with his problem. i linked him here to read on what everyone went through for a solution.

http://www.mazdas247.com/forum/showthread.php?t=123647370

[Diehonda]

Ok, I will check that one out. Thkx

[Kooldino]

Hey guys. Im actually one of those overpaid mazda dealership techs. The only problem I have ever seen with random missfire from the bullet proof protege is problems with the egr, leaking regulator(make sure you check this), spark plugs( need to be replaced every 30k or it will take out the two coil pack) and every once in a while a leaking intake manifold gasket.ANY vacum leaks can cause missfires. ANY rich conditions can cause missfires, the computer can only see what SHOULD be there so anything that is leaking shouldnt be there and he wont see it. Lately we just got a recall for the butterfly screws....seems under a certain vin the little bastards will come loose and fly into your engine. good times. Anyways they are copper and dont cause much damage but closing the tip on the spark plug. As for fuel pumps they hardly go out. Listen do the smart thing, check fuel pressure with a gauge., if it is right ,bam, fuel is good. Check spark and ohm check the coils. If it is good, bam ,spark good. Ohm check the injectors and you guessed it, bam, if they are good your golden. give them a good bg cleaning and replace spark plugs. Also if you havent replaced your timing belt at 60k do that as well. If you still got some kind of a missfire than i would say pcm problem or internal short/open in wiring to the drivers for fuel injectors or driver for the primary side or the coil windings. Im ASE certified, mazda certified, College graduate. Just trying to help.

+1

[Protege__Owner]

Has anyone actually purchased the Standard Motor Products Coil Pack yet? If so, actually installed it into the vehicle? Just wanted to know how the coil packs hold up? Are they at all reliable...? Im a bit skeptical because there is such a big price difference?!?! I don't just mean the price difference b/w the dealership and rockauto. Even the airtex ones from rockauto are about $90 and change. So how come the UF407 is sooooo cheap??? I kinda believe in the theory, you get what you pay for.

[Diehonda]

because they are on back order. It says something like 10 or 20 days delay which means taht they may cancel your order.

My airtex died 13 months after install. One month after waranty.

I got the 1.8 coil pack and wires instead.

[JakE-]

I have had a similar problem...

I purchased my protege in october of last year, its a 2002 es, manual. The original owner had the motor replaced. the body has 85k on it, while the motor has somewhere around 40k. The CEL came on back in november, sometimes flashing, sometimes not. I took it in to the guy who did the motor swap, and he said it needed a new knock sensor. $200 later, the CEL went off for a week, then came back on.

When i start the car, it idles really rough. it will bounce from 100-1500 rpms when in neutral, and almost die when in reverse. I also hear a rattling noise when i am in low rpms, like a loose piece of metal, but it goes away once im past 2000 rpms. i thought it could be a cover for the cat or something, but now im thinking bearings? It is going through coolant like a bastard too. I have to fill it every other week. the weird thing is, there are no leak spots on the driveway.

So, the CEL is still on. It comes and goes. Drives fine, not lacking any power, just idles low and misfires at idle. should i test the coils, egr, vacuum, etc?

[Diehonda]

If it is going through coolant and a CEL is on you should make checking the CEL for what code it is top priority.

Once you find out the code then post it up and we can go from there.

[thejetman]

Allright guys. I had that SAME problem on my old engine. #4 Cylinder Misfire. I bought the Ignition Coils from O'Reilly Auto Parts, (17.95 ea.) To get stock wires, go to Auto Zone, (28.99 for the two wires) If that does not solve your problem. Take the spark plugs out, and with a flashlight, look into the cylinder. To my surprise, i found Radiator fluid in Cylinder #4.....oh yea, thats were the fun started.......My problem happend to be a blown head gasket, right at 80,000 miles.....My fix was a 20,000 mile motor from a salvage yard. cost the same to install as it would have been to replace the gasket..