so yesterday i installed the bkr7e plugs and clened my throttle body. i felt as though the car had lost a step and today on the way to work it went into "engine power reduced" and would not build boost. anyone had a problem like this?

 

You prob messed up the t.b somehow or connector is barely on it. Check the t.b connector and youll have a code.

 

Yup, after I cleaned mine it was toasted. Needed a new one.

 

Seems to be too common of a problem on cobalts?

Due to messing with the throttle plate?

 

The car seemed to run fine yesterday. Just seems weird that it would be the tb

 

It's your TB. Had same issue. I cleaned the TB completely, checked the wiring, cleaned the MAF sensor and seafoamed it. No issues since. BUT if that doesn't do it, your TB is done.

 

The car came out of engine pwr decreased mode after 1 key cycle and hasnt come back so im hoping its good now.

 

Lmao!!! That's the keyword, "hoping". Same thing happened to me. It would come and go. I would have to stop at times, turn it off, wait couple minutes, then drive again. Got tired of it. You should Di what I said.

 

i had the same issue before except mine was kinda recurring. I ended up having a wiring issue on my tb. maybe thats your culprit as well

 

not liking what im hearing..

i just bought a used tb off a member on here. i just got done painting and cleaning it...

so cleaning it makes it not work anymore..? lol

 

i had the same thing happen to me this morning on my way home from work...on the freeway....in pouring rain.... stupid car i pulled some codes and it was saying something about the barometer? is that? i cleared the codes and it started back up and ran fine all the way home.... so i dunno