Idle Speed/Throttle Actuator - Electronic: Description and Operation
The Idle Air Control Valve (IAC) valve is used to control engine idle speed. The amount of air allowed to bypass the throttle plate is determined by the powertrain control module.
The Idle Air Control Valve (IAC) valve is used to control engine idle speed. The amount of air allowed to bypass the throttle plate is determined by the powertrain control module.