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:

Spark plug
Exploded View 1. Ignition coil 2. Spark plug Removal and Installation REMOVAL 1. Remove ignition coil. CAUTION: Do not drop or shock ignition coil. 2. Remove spark plug using a suitable tool. Diameter (a) : 14 mm (0.55 in) CAUTION: Do not drop or shock spark plug. INSPECTION AFTER REM ...

Multiport fuel injection system
MULTIPORT FUEL INJECTION SYSTEM : System Diagram MULTIPORT FUEL INJECTION SYSTEM : System Description INPUT/OUTPUT SIGNAL CHART Sensor Input signal to ECM ECM function Actuator Crankshaft position sensor (POS) Engine speed*4 Piston position Fuel injection & ...

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