I have a 1999 C5 corvette that is used mainly for drag racing. For the last 2 seasons I have been using EFI live to modify the %ETC table. I do this in order to dial in my car based on weather conditions, track conditions, event etc. Last week over the course of 3 runs I lost a full second in my 1/4 mile ET. The car ran fine but was just slow. It seemed as if the throttle was not opening up to the desired position. This even happened when I changed the %ETC table back to 100%. I have heard that by modifying the %ETC table that you can damage your PCM. Is it possible that I damaged my PCM such that the car runs but the throttle does not open up properly.