Quote Originally Posted by steveo View Post
i implemented my own substitute for BPROT on the flashhack side of things, since there are still 4 bytes at the beginning of the tside and the xE60–xEDF range on the e-side that i don't want modified until we understand them.
Just a wild theory here, but having just rebuilt two computer controlled GM transmissions, I've discovered the transmission shift pressure adaptations seem to be stored in eeprom on these (a 2006 and 2008 model year). I've no idea if they were doing stuff like this back in the 90s, but thought I'd throw it out there as something to consider for the unknown data on the e-side.