Nissan Versa (N17): Positive crankcase ventilation

Nissan Versa 2nd generation (N17) Service Manual / Engine / Engine control system (EC) / Positive crankcase ventilation

Inspection

1.CHECK PCV VALVE

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 valve inlet.

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace PCV valve. Refer to EM, "Exploded View".

CHECK PCV VALVE

EVAP leak check

Inspection CAUTION: Do not use compressed air or a high pressure pump. Do not exceed 4.12 kPa (0.042 kg/cm2, 0.6 psi) of pressure in EVAP system. NOTE: Do not start engine. Improp ...

Removal and installation

ECM Exploded View 1. ECM bracket 2. ECM  : Vehicle front Removal and Installation CAUTION: Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to EC-122, "Work Procedure". ...

Other materials:

Drive belt
1. Water pump pulley 2. Generator pulley 3. Manual tensioner pulley 4. Air conditioner compressor pulley 5. Crankshaft pulley WARNING Be sure the ignition switch is placed in the OFF or LOCK position before servicing drive belt. The engine could rotate unexpectedly. 1. Visually inspect t ...

Cylinder block
Exploded View 1. Crankshaft position sensor cover 2. Crankshaft position sensor (POS) 3. Oring 4. Drain plug 5. Cylinder block 6. Oil level gauge 7. Oil level gauge guide 8. Oring 9. Knock sensor 10. Oil temperature sensor 11. Oil pressure sensor 12. Oil jet 13. Top ring 14. Second ring ...

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