Hey there, looking for help on a issue which involves the tuner. Had my car in at the shop for a upgrade tune after a complete engine install but the VCM wont read my car . Plug the VCM into the car without the USB end in a laptop it has power , and do opposite ...plug into laptop and not in the car ad it has power. Tried other vehicles in the shop and the same thing so that eliminated the vehicle end of it......... any ideas anyone ????????????