So about 3 weeks ago I was having a major problem with my cobalt, it kept going into limp mode and ENG PWR Reduced would flash up on the DIC and I would get numorous check engine lights for both the PCM and Throttle body. So i first replaced the throttle body and reflashed the PCM, which deff helped out the idle surging but 2 days later it went back into that mode and shut down on me while just driving down the road. I was able to scan the CEL and it was related to a MAP sensor. I replaced the MAP sensor and what do you know its fixed. I also had to remove the P0068 code from the PCM because that was making it go into limp mode as well. If any of you are having the same issues I would start with a MAP sensor.

 

Thanks for the advise. This is actually helpful for our members.

O and good first post

 

mine did ENG PWR Reduced when the clutch started going... its been fine ever since. not saying it was your problem, just putting mine out there.

 

Mine did it when my flex pipe broke

 

speaking of... my stock shitty flex pipe is coming apart... i need to save up and get a header and DP.

 

Yah, I saw that alot of people were having the problem and not just cobalts, like alot of GM cars but no one had a real answer to fix it other than throw parts at it

 

i just disconnected the battery... and trust me the clutch finally did go.... my new one is amazing and its nice being able to use cruise control again.