If you have an emerald ECU is it best to remove the Idle Air Control Valve or leave it in ?? (car is going down to emerald soon)
I’ve heard mixed reviews of both - what have most people done on here ?
Mine was left in. The Emerald opens and closes it when you start the engine to stop it from sticking; they think of everything those boys!
Ian
Mine was left in too. No Problems.
same here