If I buy a new ECU off of ebay that is vin coded to my car will I still have to take to dealer to have them code it to the car (with it installed of course) or will it just work?
The tuner from the previous owner locked the ECU so we can't get into it to tune. I don't mind sending the ECU out to get unlocked if that's an option but I was told that's more expensive.
What's my best choice?