Thread: New to site, new to the gtp, already have a problem :/

Hi all! Can't figure this one out on my own so I'm recruiting some help! I just bought a 97 Grand Prix GTP. The previous owner has modded it A LOT. All the way from neons to 10lb nitrous bottle. My check engine light came on and it started running like poop (ran like the MAF went bad) So I took it to Auto-Zone and had them run the codes. I got 3 codes at once: p0705;transaxle range switch fault. p0171;trim fuel bank one condition. p1200;fuel injector circuit. I debunked the MAF as being bad, it does not seem to be the issue. I'm leaning towards a malfunctioning fuel injector or a vacuum leak. Short of testing all theories until I figure it out I thought I would hit the forums and see if anyone else has had these exact codes at once and how they fixed the problem! Thanks for the help in advanced!

Chillicothe! And vacuum is my biggest suspect

I found the problem! One of the fuel injectors was unplugged. (Insert le sigh of relief) the bracket holding the plug onto the injector is broke. But I got er fixed up! As for a list of mods it's quite the list so I'll post a new thread and delete this one. Thanks guys!