AIR Diverter Valve

The secondary air injection diverter (AIR diverter) valve is used with Electric Air Pump (EAP) to provide on/off control of air to exhaust manifold and catalytic converter. See Figure. When EAP is on and vacuum is supplied to AIR diverter valve, air passes integral check valve disk. When EAP is off, and vacuum is removed from AIR diverter valve, integral check valve disk is held on the seat and stops air from being drawn into exhaust system and prevents backflow of exhaust into secondary air injection system.