LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> FX37 Base, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0222 To P1088 >> DTC P0456: EVAP Control System >> Component Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Inspection

  1. CHECK FUEL TANK VACUUM RELIEF VALVE 
    1. Turn ignition switch OFF.
    2. Remove fuel filler cap.
    3. Wipe clean valve housing.
      Fig 1: Identifying Spring, Pressure Valve, Vacuum Valve, Plate And Gasket
      G09000914Courtesy of NISSAN NORTH AMERICA, INC.
    4. 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 Using Tool
      G09000915Courtesy 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.

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

    : INSPECTION END