Originally Posted by grabera7
I already have the 04-07 fuel setup. This sucks.
Well, definitely sounds like a calibration issue. Your tuner doesn't know how to tune the 08+ or he's over looking something. 99% of the cars with the 04-07 fuel setup, this studder is corrected with little tuning. This, with your CEL makes me believe it is most definitely a calibration issue.