Genuine Mitsubishi Diamante Idle Control Valve

Mitsubishi Diamante Idle Control Valve Parts Questions & Experts Answers

• Idle Speed Control
  MD628053
  Q: What is the function and testing procedure for the Idle Control Valve on Mitsubishi Diamante?

  A:

  The Idle Control Valve is a DC stepper motor managed by the PCM, containing a position sensor that detects its opening. A signal is sent to the PCM which varies the motor to keep the engine at the correct idle speed. To test the Idle Control Valve, place a stethoscope or long screwdriver on it and listen for clicks in response to an assistant turning the key ON (engine OFF). If you hear a clicking sound, the PCM driver and circuit are good. If the driver and circuits have been confirmed as operational, disconnect the connector from the Idle Control Valve and take an ohmmeter to measure resistance between pins 2 and 3 (of the Idle Control Valve connector) to see if they measure between 28-33 ohms. If they don't the Idle Control Valve must be replaced. To remove the Idle Control Valve from the throttle body, first disconnect the negative cable of the battery. Remove the air cleaner intake hose and any hoses from the Idle Control Valve you can. Remove the electrical connectors and retaining bolts. Reverse the steps to remove the Idle Control Valve while replacing the IAC gasket.