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Home >> Infiniti >> 2010 >> M35 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - System And Component Testing >> On Board Refueling Vapor Recovery (ORVR) >> Component Inspection
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Component Inspection

  1. INSPECTION START

    Will CONSULT-III be used?

    Will CONSULT-III be used? 

    YES: GO TO 2.

    NO: GO TO  3.

  2. CHECK REFUELING EVAP VAPOR CUT VALVE

    With CONSULT-III 

    1. Turn ignition switch OFF.
    2. Remove fuel tank. Refer to "REMOVAL AND INSTALLATION ".
    3. Drain fuel from the tank as per the following:
      • Remove fuel feed hose located on the fuel gauge retainer.
      • Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other side to a fuel container.
      • Drain fuel using "FUEL PUMP RELAY" in "ACTIVE TEST" mode with CONSULT-III.
    4. Check refueling EVAP vapor cut valve for being stuck to close as per the following.

      Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that the air flows freely into the tank.

    5. Check refueling EVAP vapor cut valve for being stuck to open as per the following.
      • Connect vacuum pump to hose end.
      • Remove fuel gauge retainer with fuel gauge unit.

        Always replace O-ring with new one  .

      • Turn fuel tank upside down.
      • Apply vacuum pressure to hose end [-13.3 kPa (-0.136 kg/cm3 , -1.93 psi)] with fuel gauge retainer remaining open and check that the pressure is applicable.
        Fig 1: Applying Vacuum Pressure To Hose
        G04874796Courtesy of NISSAN MOTOR CO., U.S.A.

        Is the inspection result normal? 

        YES: INSPECTION END

        NO: Replace refueling EVAP vapor cut valve with fuel tank.

  3. CHECK REFUELING EVAP VAPOR CUT VALVE

    Without CONSULT-III 

    1. Turn ignition switch OFF.
    2. Remove fuel tank. Refer to "REMOVAL AND INSTALLATION ".
    3. Drain fuel from the tank as per the following:
      • Remove fuel gauge retainer.
      • Drain fuel from the tank using a handy pump into a fuel container.
    4. Check refueling EVAP vapor cut valve for being stuck to close as per the following.

      Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that the air flows freely into the tank.

    5. Check refueling EVAP vapor cut valve for being stuck to open as per the following.
      • Connect vacuum pump to hose end.
      • Remove fuel gauge retainer with fuel gauge unit.

        Always replace O-ring with new one  .

      • Turn fuel tank upside down.
      • Apply vacuum pressure to hose end [-13.3 kPa (-0.136 kg/cm3 , -1.93 psi)] with fuel gauge retainer remaining open and check that the pressure is applicable.
        Fig 2: Applying Vacuum Pressure To Hose
        G04874796Courtesy of NISSAN MOTOR CO., U.S.A.

        Is the inspection result normal? 

        YES: INSPECTION END

        NO: Replace refueling EVAP vapor cut valve with fuel tank.