Stabilitrak/Reduced Engine Power - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

camguynj · 04-30-2015, 05:56 AM

Quote:

Originally Posted by thkfast

Update: 04/30/2015

The repair was covered under warranty. Defective Accelerator Pedal Assembly. No idea what might have possibly caused the throttle position sensor to malfunction.

Did you still have the VTC installed when you took it to the dealer ?

thkfast · 05-01-2015, 03:34 AM

Quote:

Originally Posted by camguynj

Did you still have the VTC installed when you took it to the dealer ?

Nope.

camguynj · 05-01-2015, 06:29 AM

Quote:

Originally Posted by thkfast

Nope.

How long did you have the VTC installed before you started having the problem? Are you going to re- install it?

ZLeeper · 03-29-2018, 10:34 PM

Posting to this thread as I am having these exact issues on my 2013 ZL1 9k miles, CEL light comes on, Engine power reduced and Stabilitrak message. P2138 code always repeats. Just when I think the problem is solved and the car drives normal for a few miles, the same code reappears and car goes into limp mode. The tune has been in the car for nearly a year, no problems.

I have replaced the Accelerator Pedal switch, replaced throttle position sensor and cleaned the VMax throttle body, wiring was verified by GM mechanic to not have any shorts in those harnesses. I have confirmed with JMS about the pump voltage booster and the connecting pin harness is good. I do not have a Vitesse throttle controller.

Could the throttle body actuator malfunction to cause this code? or anything else to do with the VMAX throttle body. That is only part that might be old as it was an exchange and I do not have my stock throttle body to test that theory. The last thing that I have not done is replace the pigtail at the throttle position sensor.

Hoping some good answers come from this because not driving the car for 2 months is getting old.

tylerio · 04-01-2018, 06:25 PM

My 2012, 40,000-mile, tuned Camaro SS came up with this problem a few weeks ago. Service stabilitrak, ABS light, traction control light, car stutters and backfires. Tachmeter stops working. Only happens on start-up in sub 20 degree weather. Once it warms up a bit, I turn it off, restart it, and the problem goes away. Right now just an annoyance and winter being over I'll probably not mess around with it. I avoid dealers like the plague, so won't be seeking their advice. Fingers crossed that it doesn't re-occur before next winter.

jeffsfast1le · 04-03-2018, 09:29 PM

2015 1LE (replacement engine with 2k miles). I had this exact thing happen to me this morning. Stabilitrak, traction control and ABS lights came on. CEL was blinking and went into limp mode for about 30 seconds and then all went away. I haven't pulled the code(s) yet. Not good for a brand new engine. I will contact the dealer this week about it.

04-01-2018, 06:25 PM	#47
tylerio EXTREMZ Drives: 2015 Z/28 #891, 2012 2SS 45th Anni Join Date: Jul 2012 Location: Southern Utah Posts: 131	My 2012, 40,000-mile, tuned Camaro SS came up with this problem a few weeks ago. Service stabilitrak, ABS light, traction control light, car stutters and backfires. Tachmeter stops working. Only happens on start-up in sub 20 degree weather. Once it warms up a bit, I turn it off, restart it, and the problem goes away. Right now just an annoyance and winter being over I'll probably not mess around with it. I avoid dealers like the plague, so won't be seeking their advice. Fingers crossed that it doesn't re-occur before next winter. __________________ ARH long tube headers, no cats Comp Cams stage 2 custom grind Ported throttle body JPSS Oil cooler JPSS SAI plates JPSS Rear sway bar Forza Continenti exhaust controller ZL1 Add-ons wickerbill Brey-Krause Harness bar Schroth 4 pt. ASM harnesses Auto-blip

04-03-2018, 09:29 PM	#48
jeffsfast1le Drives: 2015 Camaro SS 1LE Join Date: Feb 2018 Location: North Georgia Posts: 6	Stabilitrak/Reduced Engine Power 2015 1LE (replacement engine with 2k miles). I had this exact thing happen to me this morning. Stabilitrak, traction control and ABS lights came on. CEL was blinking and went into limp mode for about 30 seconds and then all went away. I haven't pulled the code(s) yet. Not good for a brand new engine. I will contact the dealer this week about it.

03-29-2018, 10:34 PM	#46
ZLeeper Drives: . Join Date: Feb 2013 Location: . Posts: 50 View My Garage	Posting to this thread as I am having these exact issues on my 2013 ZL1 9k miles, CEL light comes on, Engine power reduced and Stabilitrak message. P2138 code always repeats. Just when I think the problem is solved and the car drives normal for a few miles, the same code reappears and car goes into limp mode. The tune has been in the car for nearly a year, no problems. I have replaced the Accelerator Pedal switch, replaced throttle position sensor and cleaned the VMax throttle body, wiring was verified by GM mechanic to not have any shorts in those harnesses. I have confirmed with JMS about the pump voltage booster and the connecting pin harness is good. I do not have a Vitesse throttle controller. Could the throttle body actuator malfunction to cause this code? or anything else to do with the VMAX throttle body. That is only part that might be old as it was an exchange and I do not have my stock throttle body to test that theory. The last thing that I have not done is replace the pigtail at the throttle position sensor. Hoping some good answers come from this because not driving the car for 2 months is getting old.