Dale P

Thanks, having some idling issues, replaced faulty ICS, set TPS (.63v) and calibrated now I need to adjust CAS to sort out base timing. Thought I'd double check to avoid chasing my tail. Lol.

I have a 1990 Galant VR4. When setting idle speed via BISS do I need to ground diagnostic pin the way you would for stock ECU? Also for base timing do I need to ground connector in engine bay as you would stock ECU or just use trigger calibration. I'm guessing I don't but wanted to make sure.