Brad's Car Manuals: A 3rd party mirror of CHARM + LEMON car manuals
Home >> Nissan-Datsun >> 1987 >> Sentra Base >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Operation >> Air Injection Valve

Air Injection Valve

Download the full database via torrent (~1.1 TB)

The Air Injection Valve (AIV) is a dual reed type check valve. When exhaust pressure is lower than atmospheric pressure, valve opens and secondary air is sent to the exhaust manifold. When exhaust pressure is higher than atmospheric pressure, valve closes and secondary air injection is shut off.