Mitsubishi Type Idle Control Valves
This type of idle control valve is fitted to the manifold of many vehicles including Suzuki, Hyundai, Proton, and of course Mitsubishi. They are commonly failing in the stuck open position (fast idle). In order to test if the valve has failed, disconnect the electrical plug with the engine just running. Turn igniton off. Then restart ignition and refit plug. If the valve is working correctly the idle speed should immediatley increase even higher. If not, call BBA if you would like a quote for a reman unit.