Does the reflash of TSX/Accord vehicles include or could possibly include a change in the way the throttle-by-wire works. I have a serious problem with my 2008 accord surging during acceleration and also during shifting it bogs very badly at times. Also during three of the bad shifts the car backfired.
My honda dealer won't/can't do anything about it because there are no CEL's and they are unable to reproduce the problem or are just not feeling it.