Question (warning may be a dumb one), I read the thread about the other guy who'd get a thud noise then a CEL.
My situation- Last time at test and tune and once when playing around with the car doing a hard launch, when I went to shift (1-2 maybe 2-3 as well) I heard a loud thump come from what sounded like the right front of the engine bay. If it were a N/A car I'd assume it was a back fire through the intake but I don't have enough knowledge about this engine to know. In all the situations I'm pretty sure when I went to shift I didn't get off the gas quick enough and the car may have hit the rev limiter. I looked under the hood and all seems well and there have been no service codes. The car is stage 2 (turbo back and Cobb OTS Stg 2 map). I've decided not to run the car like that until I get my new after market TMIC on and get it pro tuned.
Any ides or opinions?