6th Gen ('00-'05): icm failure.....
#21
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I think you're chasing your tail as far as the MAF goes. It is not going to cause an ignition coil to stop producing energy. The car is displaying classic signs of a coil failure. The vehicle will run properly when cold, but when it warms up the windings in the coil (either primary or secondary) expand and short out. However, since you swapped coils around and the problem didn't follow the coil that eliminates it as being the source of the problem. That leaves the control module and the circuit that feeds it. The control module can exhibit the same signs as a failing coil. I would pull the control module and see if you can exchange it under warranty. If I was a gambling man that's where I would put my money.
#22
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I think you're chasing your tail as far as the MAF goes. It is not going to cause an ignition coil to stop producing energy. The car is displaying classic signs of a coil failure. The vehicle will run properly when cold, but when it warms up the windings in the coil (either primary or secondary) expand and short out. However, since you swapped coils around and the problem didn't follow the coil that eliminates it as being the source of the problem. That leaves the control module and the circuit that feeds it. The control module can exhibit the same signs as a failing coil. I would pull the control module and see if you can exchange it under warranty. If I was a gambling man that's where I would put my money.
Which also causes misfiring is what I was getting at....
The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion (see stoichiometry) and influence the advance or retard of ignition timing. A fuel-injected engine may alternately use a mass airflow sensor (MAF sensor) to detect the intake airflow.
#23
![Default](/forum/images/icons/icon1.gif)
I think you're chasing your tail as far as the MAF goes. It is not going to cause an ignition coil to stop producing energy. The car is displaying classic signs of a coil failure. The vehicle will run properly when cold, but when it warms up the windings in the coil (either primary or secondary) expand and short out. However, since you swapped coils around and the problem didn't follow the coil that eliminates it as being the source of the problem. That leaves the control module and the circuit that feeds it. The control module can exhibit the same signs as a failing coil. I would pull the control module and see if you can exchange it under warranty. If I was a gambling man that's where I would put my money.
Looking for the recipt now.... If i can't find it,
i picked it under my budies acount so i will head to his store with himand get it warrentied being he does a good amount of volume througth them i don't see it being and issue
#24
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Yes, the MAF readings are a variable used to determine ignition advance/retard, but it isn't going to randomly shut down a single coil pack. If the readings from the MAF were skewed it would alter timing and fuel distribution, but all coils would continue to produce energy.
![Wink](https://montecarloforum.com/forum/images/smilies/wink.gif)
#25
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Did pull it had it tested as stated in previous post, 2 diffent parts place 2 different machines,
Looking for the recipt now.... If i can't find it,
i picked it under my budies acount so i will head to his store with himand get it warrentied being he does a good amount of volume througth them i don't see it being and issue
Looking for the recipt now.... If i can't find it,
i picked it under my budies acount so i will head to his store with himand get it warrentied being he does a good amount of volume througth them i don't see it being and issue
#26
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I really do think that replacing the control module will put an end to this headache for you. Most equipment used for testing modules can verify proper operation of the circuits, but can't replicate the underhood engine temps that the module is exposed to. A lot of times a module will test okay out of car, but once it is exposed to heat it will malfunction.
#27
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I just hope you get it straightened out.
Like chibi mentioned before...when I was haveing that same issue...
and the MAF was the answer....Even though a MAF isnt cheap...
Since you said you had them both tested and they both failed...
Thats just what ive experienced with mine ... Good Luck!
Now im extremely curious as to what the actual fix will end up being...
Like chibi mentioned before...when I was haveing that same issue...
and the MAF was the answer....Even though a MAF isnt cheap...
Since you said you had them both tested and they both failed...
Thats just what ive experienced with mine ... Good Luck!
Now im extremely curious as to what the actual fix will end up being...
![EEK!](https://montecarloforum.com/forum/images/smilies/eek.gif)
#28
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Wel
Well to get it running on all 6 i am getting the the ICM warrantied obviously it's junk 2 machines and 2 different stores failed at both, that is one starting point to atleast have it running on all 6 instead of 4,
talked to my budy i will probably go get that tomarow then i can investige maf if i continue to have issues with anything
I just hope you get it straightened out.
Like chibi mentioned before...when I was haveing that same issue...
and the MAF was the answer....Even though a MAF isnt cheap...
Since you said you had them both tested and they both failed...
Thats just what ive experienced with mine ... Good Luck!
Now im extremely curious as to what the actual fix will end up being...![EEK!](https://montecarloforum.com/forum/images/smilies/eek.gif)
Like chibi mentioned before...when I was haveing that same issue...
and the MAF was the answer....Even though a MAF isnt cheap...
Since you said you had them both tested and they both failed...
Thats just what ive experienced with mine ... Good Luck!
Now im extremely curious as to what the actual fix will end up being...
![EEK!](https://montecarloforum.com/forum/images/smilies/eek.gif)
talked to my budy i will probably go get that tomarow then i can investige maf if i continue to have issues with anything
#29
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Got it warrenteed earlier! =) so a little late night wrenching here i come, i have not driven my car in 4 days and i miss it, and last time i drove it it was running on 4cyl so stupid underpowered and obviously not right!