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Can anyone tell me if there is a code left in the computer when you take a program out. I have HyperTech programer and am happy with the program but I need to take it back to the dealer. I want to take the program out before I take it back. but does it leave a code in the computer. If so how do I get it out?
You can flush all the codes by disconnecting the batteries, and turning the headlights on. I know the headlights won't work without the batteries connected, but turning them on drains any residual power from the system. After you've reconnected the batteries, there won't be any codes.