The idle air control valve sometimes known as an IAC is an electrical actuating device designed to electromechanically control engine idle speed.

The idle air control valve is an essential part of the vehicle engine management system, integrated into a bypass housing or located on or near the throttle body assembly. The idle air control valve allows a measured amount of air to bypass the throttle plate/butterfly when it is closed, enabling the ECU to accurately control the idle speed of the vehicle's engine.

The IAC position is adjusted quickly to compensate for engine load and is commonly required for or during engine start-up, cold start/engine warm-up, additional electrical loads, deceleration, air conditioning, and automatic transmission use.

When an idle air control valve malfunction or fault is suspected the entire engine management system should be checked with the faults diagnosed and repairs carried out by a trained professional.

Fits Vehicles of the Following Years and Make:

Mitsubishi Eclipse 2.0L 2.4L L4 2000 2001 2002 2003 2004 2005

Mitsubishi Galant 2.0L 2.4L L4 1999 2000 2001 2002 2003

Mitsubishi Lancer 2.0L 2.4L L4 2003 2004 2005 2006

Mitsubishi Outlander 2.0L 2.4L L4 2003

Mitsubishi Pajero NL 1997 1998 1999 2000

Mitsubishi Pajero NM 2000 2001 2002

Mitsubishi Pajero NP 2002 2003 2004

Mitsubishi Triton 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006