I recently bought MPVI3 and 2 credits to tune my 2013 Tahoe with an L96 (6.0) conversion. I dont want to get caught up buying more credits than necessary to work on my vehicle. I assume my credits were used when I first saved my vehicles file in VCM editor, which I thought would marry the VIN to the credits.
Now my question is does any write have to be a modification of the exiting tune program or can a file be loaded from a repository tune, does that cost more licensing credits?