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Home >> Infiniti >> 2012 >> G25 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0443 To P1084 >> DTC P0455: EVAP Control System >> Component Inspection
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Component Inspection

  1. CHECK FUEL FILLER CAP
    1. Turn ignition switch OFF.
    2. Remove fuel filler cap. Refer to "REMOVAL AND INSTALLATION ".
    3. Wipe clean valve housing.
      Fig 1: Cut View Of Fuel Filler Cap
      G08451622Courtesy of NISSAN NORTH AMERICA, INC.
    4. Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
    5. Check valve opening pressure and vacuum.

      Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm 2  , 2.22 - 2.90 psi) 

      Vacuum: -6.0 to -3.3 kPa (-0.061 to -0.034 kg/cm 2  , -0.87 to -0.48 psi) 

      Fig 2: Checking Valve Opening Pressure And Vacuum
      G08451623Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: GO TO 2.

  2. REPLACE FUEL FILLER CAP

    Replace fuel filler cap. Refer to "REMOVAL AND INSTALLATION ".

    CAUTION: Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may come on.

    INSPECTION END