I own a 2010 ss. So my battery was dead and I replaced it today. Everything went fine until I went to start my car. When I try to start it, it won't hold an idle. If I try to rev the engine to keep it up, I spits out white smoke that smells of gas. My injectors are reading about 900 psi on my gauge, when the car is off. When its on they read about 1200 psi. I can no longer see my cam phaser data either. All fuses are good. Disconnected battery for about 5 min and then reconnected and the issue persists. Any suggestions?

 

You have a big boost leak, my old one did the same thing when I flashed a stock tune onto it. It would barley hold idle then shut off. MY intercooler had a big hole in it when it did this. I couldn't read half the data on my rpd either lol. Check for boost leaks. Unless your PCM is screwed magically.

 

Boost leak would effect it even at idle?

 

Not until you unplug the battery or flash a new tune on it I think. What you're saying happened to you happened exactly to me after I flashed a stock tune on my old white cobalt when the intercooler blew before I went into the dealer.

 

alright thanks, ill start looking at new ones