Idle Speed Controller - Stepper Motor - Mitsubishi VR4 Galant/Legnum EC5A EC5W Idle Air Control Valve If your engine idling is going up and down like a fiddlers elbow then this could well be the reason. Click HERE for difference between old style Stepper & New Style Stepper For an Exploded Diagram of inlet manifold and Throttle body Click HERE Video HERE on an FTO but same place etc Mitsubishi Part Numbers MD614568 MD628054 MD614978 MD628056