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Home >> Nissan-Datsun >> 2008 >> Rogue SL, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0171 To P0500 (CALIFORNIA) >> P0448 EVAP Canister Vent Control Valve >> Component Inspection

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 (B) of EVAP canister vent control valve for being rusted.

    Is it rusted?

    YES: Replace EVAP canister vent control valve

    NO: GO TO 2.

    Fig 1: Identifying EVAP Canister Vent Control Valve
    G04886552Courtesy of NISSAN NORTH AMERICA, INC.
  2. CHECK EVAP CANISTER VENT CONTROL VALVE-II

    With CONSULT-III 

    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.

      Make sure new O-ring is installed properly. 

      CONDITION CHART

      Condition VENT CONTROL/V Air passage continuity between (A) and (B)
      ON Not existed
      OFF Existed

      Operation takes less than 1 second. 

    Without CONSULT-III 

    Check air passage continuity and operation delay time under the following conditions.

    Fig 2: Checking Air Passage Continuity
    G04886553Courtesy of NISSAN NORTH AMERICA, INC.

    Make sure new O-ring is installed properly. 

    CONDITION CHART

    Condition Air passage continuity between (A) and (B)
    12V 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

  3. CHECK EVAP CANISTER VENT CONTROL VALVE-III

    With CONSULT-III 

    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.

      Make sure new O-ring is installed properly. 

      CONDITION CHART

      Condition VENT CONTROL/V Air passage continuity between (A) and (B)
      ON Not existed
      OFF Existed

      Operation takes less than 1 second. 

    Without CONSULT-III 

    1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
      Fig 3: Checking Air Passage Continuity
      G04886553Courtesy of NISSAN NORTH AMERICA, INC.
    2. Check air passage continuity and operation delay time under the following conditions.

      Make sure new O-ring is installed properly. 

      CONDITION CHART

      Condition Air passage continuity between (A) and (B)
      12V 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