Hello all, I recently purchased an 07 SS with the supercharger, and as far as I can tell the only mods it has is the exhaust and an AEM Fuel mix gauge. the car runs fine while driving but at idle can fluctuate from 11.0 to 17.0 and sometimes almost seems to die or almost stall when at idle, im just wondering if theres anyway i can adjust the mixture myself without having to take it to a tuner, also not sure if this is relevant but apparently the intercooler isnt hooked up, even though its installed. any help is very much appreciated, thanks in advance

 

Why is the intercooler not hooked up? Have you scanned it for codes?

 

Im not sure, its what the seller told me when i bought it, and im not sure how to do that myself either. As for the codes, i know a couple sensors arent working but im waiting on a new odb reader to be shipped to me, should have it monday.

 

so i scanned the car, no codes and it says the air/fuel is running on a closed loop using the 02 sensor, so maybe the sensor is faulty? this is something i really dont know anything about

 

AFR jumping around at idle could be a bad o2 sensor. It could also be an exhaust leak where the header meets the head or at the collector. Try unplugging the o2 sensor in the header and run it for a bit (it will throw a code but ignore it for now). If the problem stops, you know its one of those two issues.

 

Thank you! replaced the upstream o2 sensor and it solved it, no more issues at idle and shifting and power response are soooo much better. much appreciated!