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EGR Valve
- Remove EGR valve from engine and inspect it for damage. Apply vacuum to EGR valve and watch diaphragm movement.
- Diaphragm should move to full open position and should remain in this position for at least 30 seconds after vacuum is shut off.
- Before reinstalling EGR valve, clean mating surface with a wire brush and compressed air. Remove foreign material from around valve and port.
Courtesy of NISSAN NORTH AMERICA, INC.