nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Idle Air Control Valve-Air Regulator <--> [Auxiliary Air Valve (Idle Speed)]|Testing and Inspection > < Diagram Information and Instructions|Page 3308
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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.

Idle Air Control Valve-Air Regulator <--> [Auxiliary Air Valve (Idle Speed)]|Testing and Inspection > < Diagram Information and Instructions|Page 3308