I have an 07 SS/SC with GM stage 2, cold air intake and 2.85" pulley. The problem I'm having is when I drive the car with the AC on and release the gas pedal the idle fluctuates up and down 1k rpm, It sounds like the car is going to stall. With the AC off it runs fine. I brought the car to my local Chevy dealership, they told me "it's not covered under warranty because of the stage 2 (wich they installed), the car may have been abused causing it to have irratic idle". I think thats a bunch of BS.. but what can I do? Anyways.. I would like to know if anyone out there has experienced this problem.. and what you did to fix it. Any advice will be truly appreciated. Thanks in advance.

 

Search there is a sticky somewhere.

 

There is a reflash for that with the older models but I would of thought for the 07 they would of included it in the main flash for the pcm. When they flashed your stage 2 you didnt get the add ons for that problem.

 

I have the same problem. but i rarely use my ac so i dont bother with it

 

There was a updated flash as someone stated earlier , but i would make them warranty it as it is a GM kit that is covered by your cars warranty . The 2.85 throws a wrench into the warranty thou, put the stage 2 pulley back on and make them fix it. If they wont call GM customer service ,or take it to another dealer.

You can try cleaning the throttle body out , but the symptoms point to the stage tune.

 

I figured it had something to do with the stage 2 tune, but wasn't 100% sure. I cleaned the throttle body, it didn't do much, the problem is still there. I've had so many problems with this car since day 1, guess I'm just going to deal with the idle problem for now. I plan on trading it in next year....


Thanx for the advice!