Customer brought me his car to remove the sct handheld tuner and do a custom tune on the car. I returned the tune to stock calibration via the handheld and read the file. I then made my changes to get the car up and running with ZERO changes to the transmission tables. I went ahead and flashed the pcm and tcm which I regret now but the car loses throttle above 47 mph and the trans feels like its stuck in 3rd gear. I am getting no codes and it will go in reverse etc etc. Not sure if there is a special procedure for flashing these transmissions as I am a GM tuner but either way check out the file and logs and please let me know if you know where I've went wrong or what may be the culprit.
TIA
sd 3.hpt
dr 1.hpl