Car problems. Faulty ECM - Page 5 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

gotpball44 · 06-06-2009, 11:56 PM

Quote:

Originally Posted by bballr4567

That is still a KR sensor error code. I can bet you that if you find out which one it is, replace it, and the car will run fine.

they said they checked the whole system to make sure. But they said they need to replace the ecm. That is also wat the book says to do

bballr4567 · 06-07-2009, 12:40 AM

You really cant check the KR sensors unless you look at the scans at WOT. How much knock was the dyno saying you were getting?

If the ECM is pulling 15 degrees its the KR sensors telling it to do so.

Vash · 06-07-2009, 12:58 AM

Could be contaminated fuel like some water.

What fuel is in it btw? Just some super with no additives?

To low or high can cause that sensor or bad fuel.

edit: Also the computer does a self diagnostic and if it was bad it would tell you or not work.

So putting another is not gonna fix this. They probably replaced the sensor.

Which is why I suspect fuel quality. The car itself has no problem. Just bad juice...

CWI · 06-07-2009, 03:26 AM

This is quite curious.

gotpball44 · 06-07-2009, 06:24 PM

Quote:

Originally Posted by Vash

Could be contaminated fuel like some water.

What fuel is in it btw? Just some super with no additives?

To low or high can cause that sensor or bad fuel.

edit: Also the computer does a self diagnostic and if it was bad it would tell you or not work.

So putting another is not gonna fix this. They probably replaced the sensor.

Which is why I suspect fuel quality. The car itself has no problem. Just bad juice...

I have emptied my tank and filled it back up many times. Thats what we thought it was in the first place when the check engine light came on the first time.

BustedCrank · 06-07-2009, 07:03 PM

Quote:

Originally Posted by gotpball44

they said they checked the whole system to make sure. But they said they need to replace the ecm. That is also wat the book says to do

Would be curious how they checked the the knock sensor. Its throwing that code for a reason, if you follow the troublshooting guide for any code it will eventually lead you to a faulty ecm if everything checks out. If you get to that point, start over, you missed something. Obviously they are missing something if they have put three computers in it and all say the same thing.

gotpball44 · 06-07-2009, 07:56 PM

Quote:

Originally Posted by BustedCrank

Would be curious how they checked the the knock sensor. Its throwing that code for a reason, if you follow the troublshooting guide for any code it will eventually lead you to a faulty ecm if everything checks out. If you get to that point, start over, you missed something. Obviously they are missing something if they have put three computers in it and all say the same thing.

Well each computer is saying something else

BustedCrank · 06-07-2009, 11:13 PM

What codes did the first ones say?

gotpball44 · 06-08-2009, 01:38 PM

Quote:

Originally Posted by BustedCrank

What codes did the first ones say?

OK, my computer in my car gave knock sensor codes, second computer didnt even take any programming (didnt even upload anything), third one gave a RAM code (what ever that means), but didnt show the knock sensor codes anymore. So they are getting a computer that has the same model number from the production line in Canada now.

gotpball44 · 06-09-2009, 07:34 PM

hopefully should be fixed tomorrow

SSRider · 06-09-2009, 09:03 PM

Very sorry to hear you are having issues. I'm sure you are anxious to drive and not diagnose a mechanical problem. I will stayed tuned to check how this progresses. So far alot of good suggestions: fuel, KR sensors, electrical gremlin, and more....all good. Hang in this will get solved.

rpepka · 06-11-2009, 04:14 AM

Any Updates?

gotpball44 · 06-15-2009, 10:53 PM

Problem fixed!!!! Back to Techco to get screwed! It now dynos at 380 rwhp and 385 ftlb. torque

The ECM was faulty and my dealership changed it out. What took so long was the engineers took a computer off the production line, tested on a car, tuned it a little better, and sent it out.

navmaxlp · 06-16-2009, 06:08 AM

Grats man!! Glad this got cleared up. To be honest, I'm a little surprised it was the computer. I work in electronics and when a part goes bad several times, it usually ends up being the wiring or some other random part that you'd never think of. Enjoy the new puter and enjoy the ride.

06-07-2009, 03:26 AM	#60
CWI Helping Build America Drives: 2010 2SS/RS,LS3 2013 Duramax 3500HD Join Date: Aug 2008 Location: Freeport LPG Export Posts: 3,839 View My Garage	This is quite curious. __________________ Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting "Holy shit, what a ride!"

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06-07-2009, 12:40 AM	#58
bballr4567 Drives: 2016 Camaro 1LT M6 Join Date: Aug 2008 Location: Evansville, IN Posts: 1,256	You really cant check the KR sensors unless you look at the scans at WOT. How much knock was the dyno saying you were getting? If the ECM is pulling 15 degrees its the KR sensors telling it to do so.

06-07-2009, 12:58 AM	#59
Vash Drives: 00 Blazer Join Date: Aug 2008 Location: Texas Posts: 5,104	Could be contaminated fuel like some water. What fuel is in it btw? Just some super with no additives? To low or high can cause that sensor or bad fuel. edit: Also the computer does a self diagnostic and if it was bad it would tell you or not work. So putting another is not gonna fix this. They probably replaced the sensor. Which is why I suspect fuel quality. The car itself has no problem. Just bad juice...

06-07-2009, 11:13 PM	#64
BustedCrank Drives: Broken Join Date: May 2009 Location: WA Posts: 33	What codes did the first ones say?

06-09-2009, 07:34 PM	#66
gotpball44 Boost Is Your Friend Drives: 2016 Hyper Blue 1SS Camaro Join Date: Oct 2008 Location: La Mirada CA Posts: 1,255 View My Garage	hopefully should be fixed tomorrow

06-09-2009, 09:03 PM	#67
SSRider Drives: Black 2SS RS M6 Join Date: May 2009 Location: Arizona Posts: 85	Very sorry to hear you are having issues. I'm sure you are anxious to drive and not diagnose a mechanical problem. I will stayed tuned to check how this progresses. So far alot of good suggestions: fuel, KR sensors, electrical gremlin, and more....all good. Hang in this will get solved.

06-11-2009, 04:14 AM	#68
rpepka Drives: 2013 ZL1 # 2195 Join Date: Jun 2009 Location: Bradenton, FL Posts: 965	Any Updates?

06-15-2009, 10:53 PM	#69
gotpball44 Boost Is Your Friend Drives: 2016 Hyper Blue 1SS Camaro Join Date: Oct 2008 Location: La Mirada CA Posts: 1,255 View My Garage	Problem fixed!!!! Back to Techco to get screwed! It now dynos at 380 rwhp and 385 ftlb. torque The ECM was faulty and my dealership changed it out. What took so long was the engineers took a computer off the production line, tested on a car, tuned it a little better, and sent it out.

06-16-2009, 06:08 AM	#70
navmaxlp Drives: Not a Camaro :( Join Date: May 2009 Location: Frederick, maryland Posts: 337	Grats man!! Glad this got cleared up. To be honest, I'm a little surprised it was the computer. I work in electronics and when a part goes bad several times, it usually ends up being the wiring or some other random part that you'd never think of. Enjoy the new puter and enjoy the ride.