Any help would be great. This is a swap LS-3 with A-6 automatic using 2013 Corvette op system. everything is good throttle works fine until I put it into drive or reverse, then no throttle push the gas pedal up and down and nothing. put it back in park or neutral and it works fine. no codes to do with fly by wire at all. truck has maf and map working and has whipple 2.9 if that helps. Thank you for any help.