Alright, so I have a 2001 grand prix GTP and at the moment it is having problems idleing. The problem started on the first rainy day I drove it in since the new engine was put in about 5k miles ago. While I was driving It all of a sudden the RPMs started jumping 1000+- while I was going down the road. The gas pedal didnt really make a differnece. Made it to work miraculously and then it wouldn't start from their. I tested for air leaks and replaced the supercharger intercooler gaskets and also replace the MAF IAC and TPS. Just replaced the spark plugs with autolights 104 gapped at .060. The plugs that I took out had oil on them and were black so hopefully it's not a bad piston ring. The engine is completely modified and was built from ZZPerformance and haven't had any major issues till now. My battery isnt the greatest but starts everytime. At this point im about out of ideas so any ideas or suggestions are much appreciated. If a list of mods will help just ask and I'll post them. Currently running a 3.0 SC pulley, I even tried starting the car without the SC belt on and it did the same thing. I posted a video of it trying to start on YouTube so I'll post a link for that in the next post
Originally Posted by tcman49
