The idle air control valve (IACV) is a device attached to the throttle body that helps keep the engine of a vehicle running without throttle input, such as when the car is idling in traffic or parked ...

Rob, my 2001 Infiniti I30 with 132,000 kms has an engine light on with a 505 code. I had a new battery and alternator installed in May, and then got the Idle Air Control Valve code. On the first start ...