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Home >> Infiniti >> 2022 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Diagnostics) (1 Of 2) >> Component/Circuit Diagnosis >> EVAP Canister Vent Control Valve >> Component Inspection
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Component Inspection

  1. CHECK EVAP CANISTER VENT CONTROL VALVE-I 
    1. Turn ignition switch OFF.
    2. Remove EVAP canister vent control valve from EVAP canister.
    3. Check portion (A) of EVAP canister vent control valve for rust.
      GNSJSBIA0693Z-693Courtesy of NISSAN NORTH AMERICA, INC.

    Is it rusted?

    YES

    Replace EVAP canister vent control valve. Refer to EVAP CANISTER : Exploded View .

    NO

    GO TO 2.

  2. CHECK EVAP CANISTER VENT CONTROL VALVE-II 

    SYMBOL WITH CONSULT

    1. Reconnect harness connectors disconnected.
    2. Turn ignition switch ON.
    3. Perform "VENT CONTROL/V" in "ACTIVE TEST" mode.
    4. Check air passage continuity and operation delay time.
      GNSJSBIA0694Z-694Courtesy of NISSAN NORTH AMERICA, INC.

      Check that new O-ring is installed properly.

      VENT CONTROL/V Condition

      Air passage continuity between (A) and (B)

      ON

      Not existed

      OFF

      Existed

      Operation takes less than 1 second.

    SYMBOL WITHOUT CONSULT

    1. Disconnect EVAP canister vent control valve harness connector.
    2. Check air passage continuity and operation delay time under the following conditions.

      Check that new O-ring is installed properly.

      Condition

      Air passage continuity between (A) and (B)

      12 V direct current supply between

      terminals 1 and 2

      Not existed

      OFF

      Existed

      Operation takes less than 1 second.

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Replace EVAP canister vent control valve. Refer to EVAP CANISTER : Exploded View .

  3. CHECK EVAP CANISTER VENT CONTROL VALVE-III 

    SYMBOL WITH CONSULT

    1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
    2. Perform "VENT CONTROL/V" in "ACTIVE TEST" mode.
    3. Check air passage continuity and operation delay time.
      GNSJSBIA0694Z-694Courtesy of NISSAN NORTH AMERICA, INC.

      Check that new O-ring is installed properly.

      VENT CONTROL/V Condition

      Air passage continuity between (A) and (B)

      ON

      Not existed

      OFF

      Existed

      Operation takes less than 1 second.

    SYMBOL WITHOUT CONSULT

    1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
    2. Check air passage continuity and operation delay time under the following conditions.

      Check that new O-ring is installed properly.

      Condition

      Air passage continuity between (A) and (B)

      12 V direct current supply between

      terminals 1 and 2

      Not existed

      OFF

      Existed

      Operation takes less than 1 second.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace EVAP canister vent control valve. Refer to EVAP CANISTER : Exploded View .