I have a 2005 GTO here that possibly has an ECU issue. Car is going into limp mode for a voltage correlation P2135. Replaced the throttle body, tb pig tail and pedal and no change. If I buy a used E40 from ebay or a junkyard, can I program the vin with HP and make it work?
I've heard you need special software to add the vin. Or can I just do a "write entire" into the new ecu and run it?