... vehicles to control the engine's idling RPM. In carburetted vehicles a similar device known as an idle speed control actuator is used ... throttle when the throttle is fully closed, thereby controlling the engine's idle RPM. Without the IAC, the only way to control ... sensors, such as Oxygen/ CKP/ CMP/ ABS/ TPS/ MAP/ Speed Sensors, Idle Air Control and so on, and our products correspond to ...