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Home >> Infiniti >> 2012 >> G25 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0443 To P1084 >> DTC P0456: EVAP Control System >> Component Function Check
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Component Function Check

  1. PERFORM COMPONENT FUNCTION CHECK

    Without CONSULT 

    CAUTION:
    • Do not use compressed air, doing so may damage the EVAP system.
    • Do not start engine.
    • Do not exceeded 4.12 kPa (0.042 kg/cm2 , 0.6 psi).
    1. Attach the EVAP service port adapter securely to the EVAP service port (commercial service tool).
    2. Set the pressure pump and a hose.
    3. Also set a vacuum gauge via 3-way connector and a hose.
    4. Turn ignition switch ON.
    5. Connect GST and select Service $08.
    6. Using Service $08 control the EVAP canister vent control valve (close).
    7. Apply pressure and check the following conditions are satisfied.

      Pressure to be applied: 2.7 kPa (0.028 kg/cm 2  , 0.39 psi) Time to be waited after the pressure drawn in to the EVAP system and the pressure to be dropped: 60 seconds and the pressure should not be dropped more than 0.4 kPa (0.004 kg/cm 2  , 0.06 psi). 

      Fig 1: Attaching EVAP Service Port Adapter And Pressure Pump Securely To EVAP Service Port
      G08451625Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Go to "DIAGNOSIS PROCEDURE ".

  2. RELEASE PRESSURE
    1. Disconnect GST.
    2. Start engine and warm it up to normal operating temperature.
    3. Turn ignition switch OFF and wait at least 10 seconds.
    4. Turn ignition switch ON.
    5. Turn ignition switch OFF and wait at least 10 seconds.
    6. Restart engine and let it idle for 90 seconds.
    7. Keep engine speed at 2, 000 rpm for 30 seconds.
    8. Turn ignition switch OFF.
      NOTE: For more information, refer to GST Instruction Manual.

    INSPECTION END