Well I'm a new member, I am trying to help out a not so mechanically inclined friend with his 2000 GTP. I guess i'll start off by saying I've never owned one and am not terribly familiar with GM's fuel injection systems as it just not what I've owned or worked on in the past.
But anyhow i'm hoping someone can give me some tips. My friend wrecked his car, the wreck wasn't that bad and he had liability only so he is trying to repair it himself. It would be drivable as-is if the engine would stay running but as of right now it will start and will only stay running with the pedal to the floor and it surges terribly at about 3500rpm like it is hitting a fuel cutout or something. If you let it below about 3000rpm it just slows and dies almost instantly. I have searched for anything that looks out of place and can't seem to find anything. I've checked and solved a couple vacuum leaks were the intake hose was seperated from the intake itself. I've unplugged and tried starting without MAF, TPS, and idle control just to check and see if they had any effect on the issue but they seem not to. I've tried plugging it into my OBD reader but I get nonsence codes? I have an older code reader that actually gives code you look up in a book, but the car gives codes that arent even in the book, almost like hex code 00FF, FFFF, 0c1F... stuff like that instead of the usual numbers. I guess i'm sort of stumped. I'm having my friend tow it to my house so he doesnt get it impounded from his aparment compex and i'd like to help him out.
Thanks,
Paul
Originally Posted by killakross5o4
