i bought an ls1 camaro a while back it has a few mods lt headers fastchips ported maf. cold air induction. and the car after cruising for awile it tryies to die but i rev it up and it works fine. and occansionally when it does it i rev it up and it will smoke grayish black smoke that is what my sisters husband said the color of it was. my question is will the fuel pressure be causing this i bought the car with a adjustable feul regulator i was told it is sat at 61 pounds of pressure. could this be the cause of it doing this thanks abunch alos i have a gauge on the way to be sure where it is sat at.

 

Maybe you need to replace the fuel filter.

 

Yea im thinking its not getting enough fuel, bring it to GM and get it scanned

 

Do you have an aftermarket cam? Mine has the LS1 Hotcam, and has not been tuned yet. It does exactly what yours does, with the added fact that I usually have to keep it alive for a bit when I turn it back on after it's been off for just a little bit. A nice dyno tune will cure mine though, and it may also cure yours

 

I know its not the fuel filter i am getting more than enough fuel it runs rich cause of the black smoke. The pressure was sat at 65 now down to 51. it runs alot better now. what would yall suggest on the fuel pressure thanks

 

i think 51psi is right for an ls1

 

okay drove alot today problem is still there i replaced the idle air temp sensor i beleive that was what i replaced still no good. maybe mass air please help

 

You know that "guessing" gets expensive. But since your guessing- I would have to say change the plugs out. From what I understand, you was running way too rich- seems like it would foul out the plugs.

 

thinks fear the z that totally slipped my mind. see i have a 94 camaro with an 01 ls1 engine so some of my gauges dont work and my service light is always on cause of the wiring so i ahve to guess right now so i think i will try the plugs

 

Find someone with a tech 2 they can hook up to your car and see whats acting crazy. Hope you find out whats wrong.

 

thanks