I sold the Tahoe I was using this on (2002 w/ 5.3l) and want to be able to use this on my buddy's 2000 TransAm. It's saying it can't back up the original tune giving an error code of "Unit 1: error unlock".
The buyers of the Tahoe didn't want the tuner. I reinstalled the factory tune, got it smogged, & handed it over. The tuner should be free to use with another vehicle... right?
Thanks!
Josh