Mirage L4-1795cc 1.8L SOHC 16 Valve (1995)
Idle Air Control Motor (DC Motor): Initial Inspection and Diagnostic Overview
Hint 1: While the engine is idling, if the idle speed and servo valve position (step) change when the air conditioning switch is turned to ON and OFF, it
can be assumed that the idle air control motor and the servo valve position sensor are operating normally.
Hint 2: If the servo valve position (step) is outside the standard position, the malfunction is probably one of the following:
1. Basic idle speed adjustment is wrong.
2. Some deposit is adhering to the throttle valve.
3. Air is being drawn into the air intake manifold through a defective gasket seal.
4. EGR valve not seated.
5. Combustion malfunction inside a cylinder. (Spark plug, ignition coil, injector or compression pressure is defective.)
