hey guys why exactly does the car have to be in diagnostic mode to set the timing? how much can it affect your timing if you dont have it in diagnostic mode when you set it?
timing question
- Thread starter 87supraturbo19
- Start date
2 degrees I think is all it changes. So it would be 12 degrees without the jumper installed, Mostly I believe you just want to verify that it changes with the jumper in and out so you know the ecu is in control.
