View Full Version : MSD dashhawk questions
$inCitySpeed3
10-22-2007, 05:47 PM
I just got mine, it didnt come with the owners manual...i need help big time...when you start it up it give you a couple options
Ford
gmc durmax
chrysler
chevy
other
Since mazda is a ford company do you go to ford...
HELP me...i want to kill the guy i bought it from on ebay
subparpunk03
10-22-2007, 06:11 PM
I would check out MSDs website. You can usually find a user manual online somewhere.
Failing that, just play with it, try ford, see how that works, if it doesn't, you might have to download a software update for it via MSD.
http://www.dashhawk.com/downloads.html
$inCitySpeed3
10-22-2007, 06:29 PM
i did the update but no mazda, anybody with one that can chime in please call me 7024489241
$inCitySpeed3
10-22-2007, 07:05 PM
alright it's seems to be working under ford, but the rpms are a little off...is it possible that the stock rpm is off
subparpunk03
10-22-2007, 07:07 PM
http://www.msdignition.com/forum/forumdisplay.php?f=22
Someone there can almost certainly help you.
Jays07MS3
10-25-2007, 04:10 PM
If it is asking you what car you own then it is not working right. It should recognize your car from the info its getting off of the CAN bus. Make sure that you have your car started before you first plug it in. Once your car is running and its plugged in, it will start and shut down with the car.
If you have any issues goto the msd forums like mentioned above.
dkswim
10-25-2007, 04:53 PM
what the... mine never asked me about my car. did yours come with a cd and the usb cable.
Jays07MS3
10-25-2007, 05:02 PM
what the... mine never asked me about my car. did yours come with a cd and the usb cable.
It will ask you which car if you plug it in while the ignition is off. Its because the CAN bus is providing power but not communication so the DashHawk thinks its an unknown manufacturer.
Anyways version 2.3 is out on the dashhawk website (www.dashhawk.com). Its much better than 2.2.
EVLTSTR
10-30-2007, 04:39 PM
I have dealt with MSD customer support before and they are AWESOME!!!!!
They are always willing to assist you in any way, shape or form. Don't hesitate to call, e-mail or harass them. They are great!
Falconx84
10-30-2007, 04:44 PM
jay07ms3 - what makes 2.3 better than 2.2? I looked at the website and didn't notice much difference in the release notes
dkswim
10-30-2007, 06:07 PM
it looked like it had more stuff for the diessel community.
Jays07MS3
10-30-2007, 06:25 PM
jay07ms3 - what makes 2.3 better than 2.2? I looked at the website and didn't notice much difference in the release notes
The biggest improvement IMO is the multiple logs. You can now store up to 5 data logs, 0-60 logs, and 1/4 mile logs.
Another improvement is the button response. Its still not perfect but it responds better than 2.2. Now if you been keeping up with the Beta version on the tech forums then 2.3 isn't that big of an update from beta 10. But from 2.2 release to 2.3 release, its definitely worth it. And why not, since it only takes a few minutes ;)
crystalmeth3
11-14-2007, 08:42 PM
i checked out the dashhawk... a few questions for the MS3, and thanks for the info.
Q. Do you need another piece of hardware to get the a/f ratio or is it out of the box ready with the most recent betas?
Q. Does it display egt's or does that require a sensor welded into the downpipe to be connected to the factory harness?
Q. I read on the msd website that the dashhawk gives three different air intake temps, what are the locations for these?
Q. Has anyone with an ic and/or air intake upgrade seen lower air intake temps?
Q. Does it provide trans, oil temp, and all of the ford specific numbers mentioned on the parameter section of the msd website?
Q. How comes i havent heard any of you msd owners rave about this awesome product?
Adammazda06
11-14-2007, 08:53 PM
can dashhawk monitor boost and a/f?
oskinosmee
11-14-2007, 09:55 PM
can dashhawk monitor boost and a/f?
Boost yes
as for a/f it reads the equil. if you multiply it by 14.7 you get your wideband reading
rodney
11-14-2007, 10:03 PM
is the a/f accurate if you multiply it by 14.7??
Falconx84
11-14-2007, 10:18 PM
i checked out the dashhawk... a few questions for the MS3, and thanks for the info.
1. Do you need another piece of hardware to get the a/f ratio or is it out of the box ready with the most recent betas?
2. Does it display egt's or does that require a sensor welded into the downpipe to be connected to the factory harness?
3. I read on the msd website that the dashhawk gives three different air intake temps, what are the locations for these?
4. Has anyone with an ic and/or air intake upgrade seen lower air intake temps?
5. Does it provide trans, oil temp, and all of the ford specific numbers mentioned on the parameter section of the msd website?
6. How comes i havent heard any of you msd owners rave about this awesome product?
I numbered the questions to make it easier to read, hope you dont mind
1 - it read a/f equivalent, someone said multiply by 14.7, this is correct and I understand that you can set up the graph when you view the datalog on the the computer to automatically multiply it. I believe I remember seeing that they are going to add a/f soon
2 - I haven't looked at egts lately, but it does give you cat temps and I think its the same thing, not sure
3 - I only have one air intake temp. Remember that the dashhawk is designed for many different vehicles and may or may not support certain parameters depending on your vehicle
4 - I have the cobb SRI and while I haven't data logged the info, I have noticed a difference as I do monitor AIT and I can't say I'm getting cooler than stock because I didn't pay too much attention with stock intake. But I can say that at about 30 mph I see AITs about 5-6 above ambient temp
5 - Don't know, havent checked
6 - I really haven't tested it to its full potential, haven't had a chance to use it more than as a shift light, still haven't checked out the data log potential or performance metering capabilities. I live in a city and don't have any open stretches around to really open up the car without mr police officer stopping by to say hi
hope this helps...
Jays07MS3
11-14-2007, 10:46 PM
i checked out the dashhawk... a few questions for the MS3, and thanks for the info.
Q. Do you need another piece of hardware to get the a/f ratio or is it out of the box ready with the most recent betas?
Q. Does it display egt's or does that require a sensor welded into the downpipe to be connected to the factory harness?
Q. I read on the msd website that the dashhawk gives three different air intake temps, what are the locations for these?
Q. Has anyone with an ic and/or air intake upgrade seen lower air intake temps?
Q. Does it provide trans, oil temp, and all of the ford specific numbers mentioned on the parameter section of the msd website?
Q. How comes i havent heard any of you msd owners rave about this awesome product?
^^^ Thats because you haven't searched very well ;) j/k
I've made quite a few posts about this amazing little gadget but here is the most detail.
http://www.mazdas247.com/forum/showpost.php?p=3372217&postcount=31
And everyone else answered your questions pretty well. As for the Ford PID's, I don't think we can read those but I haven't actually tried to.
The intake temp sensor I believe is after the turbo and the IC but I'm not 100% sure. I'm basing this off of certain logs I've made (heres one done on a dyno (http://www.mazdas247.com/forum/showthread.php?t=123683721)). The temps went up pretty drastically during the run. I don't normally see this type of increase during normal WOT driving. And if it was before the IC, the temps would be a LOT higher.
And you need a separate EGT probe for EGT's. And even then, you can't hook it up to the DH until the Hawkeye is release which should be soon. Check out the MSD forums for more on that.
As for the accuracy of the AFR readings, its as accurate as any wideband O2 readings. The ECU converts the sensors 0-5V reading into a Lambda reading. It says its the equivalency ratio but its wrong. Lambda = 1/EqR and MSD is currently fixing that right now. As of the latest firmware beta, the DH now read AFR's but the readings are wrong (http://www.msdignition.com/forum/showpost.php?p=43761&postcount=20)since the math is based off of EqR's not lambda readings. But all AFR readings from WB O2 sensors do exactly the same math. All readings start off as a 0-5V signal and get converted from there. My dyno run readings were just about dead on with the shop's AFR readings, except their sensor couldn't read below 10:1 like mine could :D
crystalmeth3
11-14-2007, 11:16 PM
thanks for the thorough replies.
im sold, i will be buying a dashhawk soon.
dkswim
11-15-2007, 09:09 AM
my MS CAI reads IAT 2-3 degres above ambiant and i think temp sensor is before turbo beacuse even after intercooling it is still over ambient and i havnt seen any temp sensors after turbo. i belive temp sensor is in that pancake looking thing inbetween CAi and turbo.
Jays07MS3
11-15-2007, 01:10 PM
my MS CAI reads IAT 2-3 degres above ambiant and i think temp sensor is before turbo beacuse even after intercooling it is still over ambient and i havnt seen any temp sensors after turbo. i belive temp sensor is in that pancake looking thing inbetween CAi and turbo.
Yeah you are right. I believe the IAT sensor is actually in the MAF housing.
I found this from a Mazda6 site.
http://www.mazda6tech.com/index.php?option=com_content&task=view&id=62&Itemid=1
The teardrop thing is the IAT sensor. I believe our MAFs are the same way. I'd have to check to make sure though.
http://www.mazda6tech.com/images/maf/maf7.jpg
Rotus8
11-15-2007, 01:49 PM
Yeah you are right. I believe the IAT sensor is actually in the MAF housing.
I found this from a Mazda6 site.
http://www.mazda6tech.com/index.php?option=com_content&task=view&id=62&Itemid=1
The teardrop thing is the IAT sensor. I believe our MAFs are the same way. I'd have to check to make sure though.
There are two temp sensors, one before the turbo, combined with the MAF sensor called the "intake air temp" and one in the intake manifold as part of the MAP sensor, called the "boost air temp".
Jays07MS3
11-15-2007, 02:22 PM
There are two temp sensors, one before the turbo, combined with the MAF sensor called the "intake air temp" and one in the intake manifold as part of the MAP sensor, called the "boost air temp".
Well that makes sense. I would think that the ECU has to know the actual temps entering the combustion chamber in order to correct the fuel. But its strange that this "boost air temp" isn't broadcast on the CAN bus. If it is, for some reason the DashHawk can't read it. I wish it could :( Then you could log the difference in temps from the stock IC to an aftermarket one.
Rotus, do you have a electrical diagram showing the boost air temp sensor?
Rotus8
11-15-2007, 02:30 PM
Well that makes sense. I would think that the ECU has to know the actual temps entering the combustion chamber in order to correct the fuel. But its strange that this "boost air temp" isn't broadcast on the CAN bus. If it is, for some reason the DashHawk can't read it. I wish it could :( Then you could log the difference in temps from the stock IC to an aftermarket one.
Rotus, do you have a electrical diagram showing the boost air temp sensor?
For the pinout of the ECU with the sensor signals look here: http://www.mazdas247.com/forum/showthread.php?t=123687033
I believe it is on the CAN bus, but on a proprietary PID so it requires MS3 specific software to read it. I think my Auterra reads it, but I am not sure, I'll have to check.
dan1101
11-16-2007, 10:19 PM
Just tried my Dashhawk out tonight, it was 48 degrees outside and the IAT was 58. Guess I need a CAI, summer will be even worse I'm sure.
Jays07MS3
11-17-2007, 01:44 PM
Just tried my Dashhawk out tonight, it was 48 degrees outside and the IAT was 58. Guess I need a CAI, summer will be even worse I'm sure.
Wow, thats quite a difference. I never had my dashhawk when I had my stock intake. But with the CAI, I see around 0-4 degree difference from AAT while driving. Glad to know that the CAI is doing its job though.
$inCitySpeed3
11-17-2007, 04:43 PM
all i can say is that it's prolly one of the coolest thing i have bought for a car
stefano18
11-17-2007, 06:03 PM
I have two questions, How close is the boost readings?? and what are you guys doing for mounting the dashhawk?? Because I don't want to drill holes or mess with my dash much
dkswim
11-18-2007, 10:35 AM
no boost readings as per reading PSI that i can find.calsulater load can tell you somewhat and then you can use map sensor but it requires running math in head. i ended up mounting mine too the window i made a bracket out of alluminum and drilled some holes in it to allow it to accept a suction cup ill try and get a pic of it so you can see how easy it was.
Jays07MS3
11-18-2007, 12:59 PM
no boost readings as per reading PSI that i can find.calsulater load can tell you somewhat and then you can use map sensor but it requires running math in head. i ended up mounting mine too the window i made a bracket out of alluminum and drilled some holes in it to allow it to accept a suction cup ill try and get a pic of it so you can see how easy it was.
Huh? It displays boost in PSI. The PID is under the AIR category. I even posted pictures of it here http://www.mazdas247.com/forum/showpost.php?p=3372217&postcount=31. It takes the MAP reading and subtract the barometer reading and converts from kPA to PSI to get gauge pressure.
And I have mine mounted on the steering column as shown in the pictures. No drilling required, just some velcro.
dkswim
11-18-2007, 03:25 PM
i guess it really helps if i run revsion 2.3 insted of 2.03 that might help a lot. here is some pics of how mine is mounted and the piece i made
Falconx84
11-18-2007, 08:09 PM
2.03 is horrible.... its amazing what a simple update will do.... still waiting on a/f ratio update....
dan1101
11-18-2007, 08:39 PM
I used the velcro tape to attach mine to the area just above and to the left of the center info display on the dash, partly on the vent. They way I have it mounted, I can't see the buttons because of the steering wheel but I can see the entire display. I ran the wire from the OBDII plug under the hood cable and along the trim under the steering column, out through the trim around the steering column, and up along the right-hand gauges (fuel, temp, etc.) Looks decent there.
Jays07MS3
11-19-2007, 12:15 AM
2.03 is horrible.... its amazing what a simple update will do.... still waiting on a/f ratio update....
Its already out. 2.4 Beta 3 has the correct a/f ratio readings. Works great.
Falconx84
11-19-2007, 12:24 AM
whoo-hoo!!!! thanks jay!!!
getting my dashhawk to update it now
(btw, its kinda odd that everytime I talk about how good a current version is, you post right after me telling me they updated it, lol)
dkswim
11-19-2007, 09:02 AM
you know what that means? you need to post about it more. yeah 2.03 was horrible. now ican set it up screnes on the computer that is very helpfull
AutoXRacer
11-19-2007, 09:58 AM
Does anyone have pictures of the dashhawk connected to the OBDII port?
dan1101
11-19-2007, 11:17 AM
Does anyone have pictures of the dashhawk connected to the OBDII port?
Not sure what you mean. If you're asking where your OBDII port is, it's the left lower part of the dash, right where your left knee is when you're in the driver's seat. They made the port part of the dash, that surprised me, usually they're sort of hidden up under the dash.
AutoXRacer
11-19-2007, 12:04 PM
Not sure what you mean. If you're asking where your OBDII port is, it's the left lower part of the dash, right where your left knee is when you're in the driver's seat. They made the port part of the dash, that surprised me, usually they're sort of hidden up under the dash.
Does anyone have a picture of their Dashhawk connected to the port?
I am wondering what the connector on the Dashhawk looks like...
Does it stick out like a sore thumb...or is it a low profile connector...?
Since OBDII connectors are usually big bulky connectors, I was wondering what the Dashhawk one looks like? Once connected is it easily noticed or do you have to point it out?
Thanks...
dan1101
11-19-2007, 01:37 PM
The connector is about 2" wide, with the wire coming out of it at a 90 degree angle. The plug in the dash is right above a storage compartment I hadn't even seen in my ~4 days of driving my new MS3. So unless you're on the driver's side I don't think you'll see it at all. I can take a few pics though.
AutoXRacer
11-19-2007, 01:56 PM
Thats the answer I was hoping for...
I was afraid it might have had a straight connector...but having a 90* bend will make it a much cleaner install...
Pictures would be nice!!!
Also, can you install it below the radio between the two knobs?
See image below!!
dkswim
11-19-2007, 04:26 PM
pics thats what it looks like you dont notice it if you hide the wires or if your really looking for it
dan1101
11-19-2007, 07:30 PM
Here are pics (taken in the dark) of mine. I tried to show from the back seat and from the passenger seat. Pretty stealthy.
Falconx84
11-20-2007, 02:40 AM
jay- (or those who have the 2.4 beta) - what sort of AFR are you getting during normal driving? I tend to show 14.8 and under engine braking jumps as high as 29
doesn't seem normal, but I've never tried to monitor AFRs with any vehicle before
using oem wb #1 AFR pid.... should I be using commanded afr pid?
one more ? for you.... any idea if/when we can read oil pressure? maybe its a ford pid.....
itzl0l
11-20-2007, 03:00 AM
does an ems like the stand back cause problems with the boost reading....or the atp boost cut thingy. I would imagine anything that effects the map sensor would thro it off
dkswim
11-20-2007, 09:04 AM
any pigypack system of a map clamp that is ment to change the readings that the computer reads will effect reading you will see what the computer is reading.
AutoXRacer
11-20-2007, 09:41 AM
So you are still reading correct parameters...?
Usually, sensor outputs are not changed since they are required outputs to then modify tuning tables...??? Right?
A/F will always be true, Air Temp, Coolant, Boost, Vacuum, EGT, etc...
Am I correct in assuming this?
Jays07MS3
11-20-2007, 12:03 PM
jay- (or those who have the 2.4 beta) - what sort of AFR are you getting during normal driving? I tend to show 14.8 and under engine braking jumps as high as 29
doesn't seem normal, but I've never tried to monitor AFRs with any vehicle before
using oem wb #1 AFR pid.... should I be using commanded afr pid?
one more ? for you.... any idea if/when we can read oil pressure? maybe its a ford pid.....
Your readings are perfectly normal.
At idle or cruising, our cars are in closed loop mode. The ECU tries to get a perfect a/f ratio or 14.7:1 which is called Stoich. That is when you have just enough air and fuel to burn completely.
At WOT, its in open loop mode. The ECU dumps a lot more fuel than needed in order to cool combustion temps. Our cars run really rich < 10:1 at WOT. But I've seen as high as 11.5:1 on the DH when the temps are really cold outside.
When you lift off the throttle, the ECU also goes into open loop mode. But this time the ECU isn't adding any fuel so thats why the AFR's go sky high. There is lots more air entering the engine (due to engine vacuum) than fuel so the air to fuel ratio shoots through the roof. Totally normal.
And I'm not sure about oil pressure. It would definitely be nice. I would ask Ken over at the MSD forums. I want to know if we'll ever be able to read boost intake temp as well.
And dkswim is right. If you have any standback or BCD that fools the ECU into thinking there is less boost by tricking the MAP sensor then yes, the DH will display incorrect readings. Boost is just MAP - Barometric so if the MAP is sending the ECU false signals, whether its by bleeding pressure from it or trimming its voltage, the DH will read what the ECU sees not actual boost. I'm not sure about any other sensors but I'm fairly certain that if the ECU is receiving false values, the DH will also display false values.
Jays07MS3
11-20-2007, 02:54 PM
all i can say is that it's prolly one of the coolest thing i have bought for a car
So I assume you got all your issues worked out then? We never heard back from you after your first few posts. What was the issue? It would be nice to know in case anyone else has the same problems.
AutoXRacer
11-20-2007, 03:10 PM
(iagree)(bump)
07speed3
02-07-2008, 03:14 PM
http://www.modthesims2.com/images/smiley/bump.gif
dadasracecar
02-07-2008, 03:30 PM
They fixed the issue with a new software version.
One other tip for all the DH owners: The AFR in the mazda PIDs is the commanded AFR. The Actual AFR is the reading from the sensor. Do not get that confused...
07speed3
02-07-2008, 03:37 PM
They fixed the issue with a new software version.
One other tip for all the DH owners: The AFR in the mazda PIDs is the commanded AFR. The Actual AFR is the reading from the sensor. Do not get that confused...
whats the difference between the commanded and the sensor?
dadasracecar
02-07-2008, 03:43 PM
commanded = what the ecu wants
sensor = what the sensor reads
Kurt07
02-07-2008, 04:09 PM
I have a screen with the commanded and sensor just to compare them. They stay pretty much the same.
07speed3
02-07-2008, 04:18 PM
I have a screen with the commanded and sensor just to compare them. They stay pretty much the same.
cool! where did you mount yours?
mk_slayr
02-07-2008, 04:20 PM
I don't think you can read oil temp/pressure from the OBDII (MSD forum).
-mk
dadasracecar
02-07-2008, 04:57 PM
I have a screen with the commanded and sensor just to compare them. They stay pretty much the same.
How about at open loop/WOT?
Haltech
02-07-2008, 07:53 PM
I have cmd'd and oem afr and the commanded is going to change at WOT, obviously.. However, the wideband sure does :)
Jays07MS3
02-07-2008, 10:31 PM
They fixed the issue with a new software version.
One other tip for all the DH owners: The AFR in the mazda PIDs is the commanded AFR. The Actual AFR is the reading from the sensor. Do not get that confused...
I just datalogged all four AFR PIDs: Commanded AFR, AFR 1, AFR (Mazda) & Actual AFR (Mazda). All of the last 3 AFR's read dead on with each other, 14.7 at cruise idle, 29.3:1 during engine braking, & ~10:1 at WOT. So I don't believe the mazda ones are "commanded" AFR's. If so then, you wouldn't see them change at all during idle/cruise and you wouldn't see them shoot to 29.3:1 at zero load conditions. At idle you'll notice all but the commanded hunt around 14.7 +-.2 or so but the commanded is rock solid at 14.7 as it should be. I can post up the log tomorrow.
I'm still using Beta 9 so maybe you're using 10 which might account for the differences.
dadasracecar
02-07-2008, 11:34 PM
The following is from the MSD Dashhawk forum. Kenmosher is the MSD rep.
JumpingJackson
Junior Member
Join Date: Feb 2008
Posts: 4
Default
Under the mazda pid's whats the difference between AFR / AFR from sensor
Old 02-07-2008, 02:27 PM
kenmosher
Senior Member
Join Date: Feb 2007
Location: Fort Collins, CO
Posts: 1,019
One is the commanded AFR, the other is what is read back from the wide band O2 sensor ...
dadasracecar
02-07-2008, 11:36 PM
One more thing. I asked about the accuracy of the Mazda factory wideband. I was pretty sure it was accurate around stoic but as it's not really designed to read lean/rich I wasn't sure how accurate it became as the afr went down to 13, 12, 11...
Here's ken's response:
From testing of similar setups with an LC1 (on my wife's Volvo V50 ... very similar setup to yours ... turbo, 2.5L, 5 cylinder, intercooled) ... the factory WB was "spot on".
I know the Solstice GXP folks are saying it's very very close all the way down into the 11.x:1 range.
They use the same basic sensor as the aftermarket WBs do (most use one of the Bosch WB variants ... the old one being the LSU4.2 and the new one in the OEMs is the 6.2 (I think that's the number) which is more accurate for direct injection).
dkswim
02-08-2008, 01:05 AM
yeah the old naroww band o2 sensors basicly told you if you were rich lean or stoich. with the wideband your more accurate up and down.
Jays07MS3
02-08-2008, 12:13 PM
The following is from the MSD Dashhawk forum. Kenmosher is the MSD rep.
JumpingJackson
Junior Member
Join Date: Feb 2008
Posts: 4
Default
Under the mazda pid's whats the difference between AFR / AFR from sensor
Old 02-07-2008, 02:27 PM
kenmosher
Senior Member
Join Date: Feb 2007
Location: Fort Collins, CO
Posts: 1,019
One is the commanded AFR, the other is what is read back from the wide band O2 sensor ...
Yes I read that too, but I believe Ken was just giving an educated guess. I would have said the same thing as well since the way they are labelled it make sense. But if you actually log them and look at the way they behave you'll see that the only one that acts like a commanded AFR reading is the one labelled Commanded AFR, not the 2 mazda PID's.
One more thing. I asked about the accuracy of the Mazda factory wideband. I was pretty sure it was accurate around stoic but as it's not really designed to read lean/rich I wasn't sure how accurate it became as the afr went down to 13, 12, 11...
Here's ken's response:
From testing of similar setups with an LC1 (on my wife's Volvo V50 ... very similar setup to yours ... turbo, 2.5L, 5 cylinder, intercooled) ... the factory WB was "spot on".
I know the Solstice GXP folks are saying it's very very close all the way down into the 11.x:1 range.
They use the same basic sensor as the aftermarket WBs do (most use one of the Bosch WB variants ... the old one being the LSU4.2 and the new one in the OEMs is the 6.2 (I think that's the number) which is more accurate for direct injection).
It seems that the stock WB is pretty accurate. When I compared the readings to the shop's WB that dyno'd my car, they were dead on all the way to 10:1. After that the shops WB was saturated and didn't read below 10:1.
meha11
02-17-2008, 05:58 PM
ok, i got my replacement DH yesterday, here is a few seconds of a log graph from this afternoon.
can someone please explain what knock and retard is. please pretend your explaining to a 12 year old as that is probably my mental level on the subject. Feel free to make retard jokes all you want.
http://i173.photobucket.com/albums/w76/meha11/Mazdaspeed%203/17feb08.png
enganear
02-17-2008, 08:15 PM
ok, i got my replacement DH yesterday, here is a few seconds of a log graph from this afternoon.
can someone please explain what knock and retard is. please pretend your explaining to a 12 year old as that is probably my mental level on the subject. Feel free to make retard jokes all you want.
There are two reasons to retard ignition timing, boost and knock. The more boost an engine sees, the less timing advance it can handle without detonation. The computer retards ignition timing as boost increases according with its program. The engine also has a knock sensor which is essentially a filtered microphone that listens for the sound of detonation. The computer retards the ignition timing if detonation is detected to eliminate the detonation.
-enganear
meha11
02-18-2008, 07:44 AM
There are two reasons to retard ignition timing, boost and knock. The more boost an engine sees, the less timing advance it can handle without detonation. The computer retards ignition timing as boost increases according with its program. The engine also has a knock sensor which is essentially a filtered microphone that listens for the sound of detonation. The computer retards the ignition timing if detonation is detected to eliminate the detonation.
-enganear
I read this and was confused but with your explanation also I think I may understand-Thanks for the help.
http://en.wikipedia.org/wiki/Engine_knocking
so the pink line on the graph is the engine adjusting timing in the higher boost/rpm levels to ensure the combustion happens at the optimum time?
Are the units in degrees?
i may be over thinking this but if the definition is "spark knock retard" does that mean that the higher the number the less of an advance it is? IE- if the timing was advanced by 5 deg, then the retard changed to 3, would the advanced timing now be 2 deg?
Do I have this right or am I a retard?
djuosnteisn
03-15-2008, 05:11 PM
I've got a quick question-
Just installed my DH today, and was taking some logs with stock bpv and forge to see if stock was leaky, mainly just an excuse to play with the DH. I accidently plugged it back into my car with out the ignition on, and lost all my mazda specific pid's. I plugged back into the computer, uploaded my saved settings, went back to car, made sure it was on, plugged in DH and still no mazda stuff. Any suggestions?
djuosnteisn
03-15-2008, 05:12 PM
oh yeah, i'm running version 2.4 pre prod 2
thanks
dkswim
03-15-2008, 05:42 PM
did you post that up on the dashhawk forum? and that sounds very odd.
AutoXRacer
03-15-2008, 06:14 PM
You need to turn on the car and then plug in the DashHawk...
See if that works...
djuosnteisn
03-15-2008, 06:44 PM
did you post that up on the dashhawk forum? and that sounds very odd.
thought this place was as good as any.
I just reflashed the unit, and will see if this work (as i'm sure it will). When i get home, i'll load up my settings.
Is there a thread dedicated to sharing settings files? I'm sure some people have got the optimum screen configs.
ZZZOOM!
03-21-2008, 08:16 AM
We just started carrying these. As usual very cool to see all the info. PM me if you do not have one and are interested I'll match or beat anyones price.
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cld12pk2go
03-23-2008, 01:13 AM
Is it possible to get the raw data from the data log into .txt or .xls format?
While the logger is nice, I would prefer Excel...
Haltech
03-23-2008, 07:38 AM
Yea, you have to visit the dashhawk forum at least once a week. I gotta hand it to them, best product ive owned in a long time with constant updates and work with people who have specific needs like us.
cld12pk2go
03-23-2008, 12:44 PM
Is it possible to get the raw data from the data log into .txt or .xls format?
While the logger is nice, I would prefer Excel...
Nevermind, the datalog files can be imported straight into Excel...They are just delimited text files.
Jays07MS3
03-28-2008, 08:37 PM
Is it possible to get the raw data from the data log into .txt or .xls format?
While the logger is nice, I would prefer Excel...
The logs are text files but you can open them in Excel just fine. I like to do that quite a bit since I'm an Excel geek too ;)
EDIT: Beat me to it!
cld12pk2go
03-29-2008, 07:51 AM
The logs are text files but you can open them in Excel just fine. I like to do that quite a bit since I'm an Excel geek too ;)
EDIT: Beat me to it!
Haha...
Now I am off to the MSD forum to see if they can allow more parameters to be data logged in a future update. I really need 8-10 to get a good look at everything important on this turboed engine.
kevint57
04-02-2008, 01:00 PM
Hi, i searched for a long time...
Does the Dashhawk show the engine oil temperature????
Kevin (from France)
AutoXRacer
04-02-2008, 01:05 PM
Hi, i searched for a long time...
Does the Dashhawk show the engine oil temperature????
Kevin (from France)
No, the ECU does not monitor that parameter for engine function...
Nor is pressure monitored...
kevint57
04-02-2008, 01:13 PM
No, the ECU does not monitor that parameter for engine function...
Nor is pressure monitored...
thank you!
xbox4414
04-03-2008, 02:25 PM
I don't get the AFR...it says 14.xx. Am I reading that incorrect or am i lean as hell?
cld12pk2go
04-03-2008, 03:10 PM
I don't get the AFR...it says 14.xx. Am I reading that incorrect or am i lean as hell?
I am often 13-14:1 at full boost just around the boost spike. This typically tapers down to 10-12:1 later.
dkswim
04-03-2008, 10:08 PM
xbox try reloeding the dashhawk and if that dosnt fix it upload the latest beata again.
xbox4414
04-03-2008, 10:48 PM
I'm running the latest pre production version. I forget the number....but ya it's weird. So reflashing the dashhawk should fix this? I don't think that's the issue. I just thing the dashhawk isn't reading that sensor correct and doing the math right...
dkswim
04-03-2008, 11:54 PM
reflashing tends to fix it it sometimes you get a bad download.
jam_asian85
04-17-2008, 03:35 AM
anyone ever used the shift light in their dashhawk, if you have could you please tell me how, thanks :D
dkswim
04-17-2008, 03:39 AM
set your rpm off in the staged alerts a couple rpm lower then what you think. opposite color as your displaying. try and sett other alerts farther out.
dkswim
04-17-2008, 03:44 AM
o wow 2.4 production released on tax day. its been forever since i checked and im running 2.4 prepro3
AutoXRacer
04-17-2008, 07:53 AM
anyone ever used the shift light in their dashhawk, if you have could you please tell me how, thanks :D
I use the stage alerts and set my limit to 5700 in different colors; so I can shift at 6000. I just repeated the same settings 3 times but set the color differently. So now when I hit 5700, my screen flashes in rainbow colors (not really rainbow, but 3 bright contrasting colors)...
Ooh, 2.4 is officially released!!??? (huh)
Awesome!! Can't wait to go home and download it!!! (2thumbs)
daonly1around
04-24-2008, 02:19 PM
how much "crap" do you have to DL to get the latest version installed?
dkswim
04-24-2008, 09:15 PM
one file it takes 5 to 10 min to download it all.
khoney
04-24-2008, 09:55 PM
Haha...
Now I am off to the MSD forum to see if they can allow more parameters to be data logged in a future update. I really need 8-10 to get a good look at everything important on this turboed engine.
Just out of curiosity, can you name the 8-10 you would like logged? I'm working on a datalogger in my copious free time (NOT), and would be interested to know what I should shoot for.
cld12pk2go
04-24-2008, 10:00 PM
rpm, manifold pressure, AFR, inst HP, Ignition timing, knock retard, ambient temp, boost air temp, throttle position, DI fuel press
If I was to choose 10, that would probably be the list.
With much less you just really don't know WTF the computer is doing and why.
khoney
04-25-2008, 08:00 PM
Bummer... Half of those you mentioned must be Mazda enhanced codes. Sure wish I could find a cheat sheet for them...
cld12pk2go
04-25-2008, 09:18 PM
Bummer... Half of those you mentioned must be Mazda enhanced codes. Sure wish I could find a cheat sheet for them...
I might not have stated the exact PID for those items. However, those are what I would track (well I should toss in MAF voltage as well if I could).
ericrapp
04-26-2008, 02:56 PM
Bummer... Half of those you mentioned must be Mazda enhanced codes. Sure wish I could find a cheat sheet for them...
indeed!
Erich
04-28-2008, 11:02 AM
http://dashhawk.wikidot.com/master-parameters-list
ericrapp
04-28-2008, 07:14 PM
Thats kinda nifty^
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