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Home >> Nissan-Datsun >> 2017 >> Sentra SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1.8L) (2 Of 3) >> DTC/Circuit Diagnosis >> DTC P0456: EVAP Control System >> Component Inspection >> Diagnostic Test
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Diagnostic Test

  1. CHECK FUEL FILLER CAP

    1. Turn ignition switch OFF.
    2. Remove fuel filler cap.
    3. Wipe clean valve housing.
      G04073650Courtesy of NISSAN NORTH AMERICA, INC.
    4. Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
      G04073651Courtesy of NISSAN NORTH AMERICA, INC.
    5. Check valve opening pressure and vacuum.
      Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm2 , 2.22 - 2.90 psi)
      Vacuum: - 6.0 to - 3.3 kPa (- 0.061 to - 0.034 kg/cm2 , - 0.87 to - 0.48 psi)

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 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