wheatley
#6
I had the same problem and gave up. Went to another shop for a dynotune and he had vin locked my PCM. Bought a different PCM and had it tuned with no vin locking so I could make minor adjustments with hptuners myself. Then I sent his locked PCM back with a nice decal of my new tuner slapped across it.
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#8
Some because they figure things out and they think no one else has( maybe true in some cases) and want to keep them secret, some just don't want others seeing they really have no clue what there doing( true in most cases), but if someone's spends hours and hours of time on the dyno as in figuring out the best gains from tweaking VVT tables then they don't want that information public for someone to poach and sale to there customers



