nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Positive Crankcase Ventilation > < Diagnostic Trouble Code Tests and Associated Procedures|Page 3033
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EGR Valve: Component Tests and General Diagnostics

Fig. 156 EGR Test

EXHAUST GAS RECIRCULATION VALVE

Apply vacuum to fitting on valve.
^If the diaphragm does not hold vacuum or valve spring does not lift replace valve.

Fig. 161 Solenoid Test

EGR SOLENOID FUNCTION TEST

Apply voltage to the solenoid terminals as shown above and check air passages for continuity.
CAUTION: Reversing polarity will damage the solenoid.
^Replace solenoid if it fails above test.

Positive Crankcase Ventilation > < Diagnostic Trouble Code Tests and Associated Procedures|Page 3033