I have to reopen my pid selections to duramax imperial and reset the vin# it always goes back to 5.7l?

what am i not saving, or what am i doing wrong?:help:


by the way sorry for the typo in title "reset" im an idiot

i have to do the same, and change from manual to auto. i thought i fixed it by clearing the flashscan as i was black box logging when i first got it. but it showed its ugly head again yesterday.

????

yeah sometimes it does it sometimes it dont????

its staying in the duramax imperial now. but when i check the vin its always on 5.7L. ill just keep checking it each time i log.