The idle air control (IAC) valve, is located on the throttle body, of fuel injected engines.
Here, it works with the vehicle’s (ECU) to, electrically regulate airflow to the engine, ensuring smooth idling. The (IAC) valve, controls the air needed, to maintain a steady idle speed. It essentially acts, as a bypass of the throttle body plate.
Choose Your Help Topic Below
Idle Air Control Valve (IAC), Function, Failure Symptoms – Testing
High Engine Idle – What Can Cause It – Narrow Down The Sources
Vacuum Leak Detection – The Safe Way To Find Vacuum Leaks
BY DANNY BENDER