200SX L4-1998cc 2.0L DOHC MFI (SR20DE) (1995)
Positive Crankcase Ventilation Valve: Testing and Inspection
POSITIVE CRANKCASE VENTILATION (PCV) INSPECTION
With engine running at idle, remove PCV valve from rocker cover. A properly working valve makes a hissing noise as air passes through it. A
strong vacuum should be felt immediately when a finger is placed over the valve inlet.