If the Autocal’s programming process was interrupted due to factors like the vehicle turning off or low battery, it could lead to a corrupt PCM. Make sure to connect a steady 10amp charger to maintain battery voltage during programming. Afterward, attempt to re-flash the vehicle. If a VIN error arises during programming, revert the vehicle to stock before proceeding. It’s important to note that obtaining stock tune files must be done at the dealership level, as we do not offer them.