nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Exhaust Pressure Regulator Vacuum Valve, EGR > < Diagnostic Trouble Code Tests and Associated Procedures|Page 2473
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EGR Valve: Component Tests and General Diagnostics

1.

Remove EGR control valve from engine.

2.

Apply vacuum to valve. Valve should move to full-up position and remain there for at least 30 seconds after vacuum is cut off.

3.

Visually inspect valve for damage or deformity.

4.

Clean valve seat with brush and compressed air, and remove foreign matter from around valve and port.

Exhaust Pressure Regulator Vacuum Valve, EGR > < Diagnostic Trouble Code Tests and Associated Procedures|Page 2473