300ZX Coupe V6-2960cc DOHC (VG30DE) (1994)
Idle Air Control Valve-Air Regulator: Description and Operation
Idle Air Control Valve-Air Regulator
PURPOSE
The Idle Air Control Valve - Air Regulator allows air to bypass the throttle plate when the engine is cold, providing fast idle.
OPERATION
When the engine is cold a passage in the regulator is open to allow air to by-pass the throttle plate allowing fast idle. As the engine starts and
electric current flows through a heater, the bimetal begins to turn the shutter to close the by-pass port. The air passage remains closed until the
engine stops and the bimetal temperature drops.