nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation|Description and Operation
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Positive Crankcase Ventilation: Testing and Inspection

    Remove crankcase emission control valve and apply suction to make sure that air flows on intake manifold side. While applying suction, block rocker
cover side of valve, this should cause diaphragm to seat and stop air flow.

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation|Description and Operation