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:

B terminal circuit
Description Terminal "B" is constantly supplied with battery power. Diagnosis Procedure Regarding Wiring Diagram information, refer to STR, "Wiring Diagram - With Intelligent Key System" or STR, "Wiring Diagram - Without Intelligent Key System". CAUTION: Perform diagnosis ...

PLUG
Description Replace the O-ring if oil leakage or exudes from the plug. Exploded View 1. Plug 2. O-ring 3. O-ring 4. Plug Genuine NISSAN CVT Fluid NS-3 Removal and Installation REMOVAL Remove the plugs and O-rings. INSTALLATION Installation is in the reverse order of removal. CAUT ...

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