07-14-2005, 10:14 PM
I have an 02 GAGT, 43k miles, and i have an APOC cold air intake, and the SLP Pro Flow Exhaust. Anyway's, tonight I noticed that when the car was idling, the engine was making a funny sound. It would maintain a normal sound, then the engine would like speed up, then slow back down, etc... I watched the RPMS the whole time, and it stayed at a constant 750. Is this normal? I'm not sure if the engine has always done this because I've never really listened to it. I don't have an SES light. What do you all think? Does your engine do that too?