I have a 2006 sc cobalt and yesterday it started acting up. Me and the wife where out yard selling and when we got back in the car it wouldnt start at first. It was cranking over but would not start. It finally did but ran like dog ****. The more gas you gave it the more it felt like it was being held back. It also smelled like something was burning. Got it home slowly and let it sit over night. This morning changed some of the vacuum lines took it for a spin felt like it was good to go. Parked it and let it sit. We then went to the store and it started acting up on the way home. No power, idling up and down even noticeable on the boost gauge. I am all stock. What do you guys think I need to look at first.. thanks

 

After letting it sit for about an hour its running starting and running fine again... it did make the engine light come on... Ill have to get the code scanned tomorrow at autozone..
Does it sound like a bad catalytic converter?

 

anyone?

 

42 reviews no suggestions!!

 

it could be a couple different things but i'd say for starters get that code scanned, it could be anything from a clogged cat to a bad MAF sensor to a dirty throttle body. that code should help narrow it down

 

thanks man for replying Ill get it checked out tomorrow!!

 

Just a heads up usually clogged cat will spike the boost hight than normal.

 

We really dont have much to go on as it could be a multide of things, We'll be more able to help you when we get that code

 

i would try to help, but im still learning about these cars myself, only know basics, not a lot of cobalt specifics. sorry man and best of luck on getting it figured out

 

42 viewers waiting for that code.

 

This

 

Pump could be going out too get the code and throw us a bone

 

The guy said the code showed crankshaft sensor and 02 sensor... it the crankshaft sensor a pain in the ass to change? Thanks guys

 

Crankshaft sensor isnt too bad. Its right next to the fuse panel on the exhaust side of the VC. its easy to take off, 2 bolts, but timing it right is a bitch. Dealership fix is around 600 bucks, I think Mrbelvedre on here had a how to.

 

I read it was above the starter. And one bolt hmmm

 

Can we get the actual code, there are a few codes for the CPS; the info you're giving us is still pretty vague.

 

oh ****, you're right. I was thinking Camshaft sensor. sorry disregard my post

 

Is it P0016, P0335, P0336?

 

He didnt give me the code I guess I can have it rescanned and give you the code when I do!!

 

Ok, sounds good

 

The codes it is throwing are po335 crankshaft position sensor A circuit and po171 too lean bank 1 thanks guys

 

Bump