I did an uninstall, fresh install 7.5.7 262. Read the pcm. Scanned and scanner says it's 2 different vehicles. Read PCM is a 2000 Corvette and scanned is a 2002 Camaro. I would guess this has to do with PS1's recalibration/ID as Corvette?? All PIDs validated ..happy camper. Car has a split personality?