nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Thermal Vacuum Valve, Air Injection > < Pulsed Secondary Air Injection|Locations|Page 2788
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Pulsed Secondary Air Injection: Testing and Inspection

1.

Disconnect air injection hose from injection pipe side and ensure air cannot flow in either direction through hose.

2.

Apply vacuum to air injection control valve using a suitable hand vacuum pump and ensure air flows only on injection pipe side while control
valve is operated.

3.

Check air injection and air injection control valves for binding or damage and replace if necessary.

Thermal Vacuum Valve, Air Injection > < Pulsed Secondary Air Injection|Locations|Page 2788