Look, The Car is running great but the rpm keep moving when I put the car in neutral. It move a little bit but still annoying. I have magnaflow exhaust, stage 1 GM performance kit and injen intake. Do you think you know guys how to fix that ? Sorry for my bad english.. I think it may be the intake because it have a small hole on it and I put duck-tape on it to fix it but keep doing it. Please help me.


Here's the video : https://www.youtube.com/watch?v=9tt1...ature=youtu.be

 

It's an easy fix. Just get some seafoam spray and clean your throttle body with a lint free cloth.

 

What is the CEL codes?

 

Mine did this and i found a crack in my intake. This caused it to run too lean and the computer tried to compensate by dumping in more fuel which made the idle surge up and down. Doesnt mean thats whats happening in ur case but it is something to check for