CANISTER ON-VEHICLE INSPECTION


  1. INSPECT CHARCOAL CANISTER ASSEMBLY (for Fuel Tank Cap Method)


    1. Inspect evaporative emission control system Click here.

    2. Check for clogs in the air filter (when not using the GTS).


      1. Put the engine in inspection mode (maintenance mode) Click here.

      2. Start the engine.

      3. Warm up the engine.

      4. Allow the engine to idle after the engine has warmed up.

      5. After 15 minutes, open the fuel tank cap assembly to discharge the pressure in the fuel tank.

      6. Close the fuel tank cap assembly and allow the engine to idle for 30 seconds.

      7. A01FT7R

        Open the fuel tank cap assembly again and check for inhalation sounds.

        OK
        No whooshing sounds (inhalation sound) are heard.

        Tech Tips

        If there is a smell of gasoline and a whooshing sound (exhalation sound) is heard, positive pressure in the fuel tank is being discharged. This does not indicate a malfunction.

    3. Check for clogs in the air filter (when using the GTS).


      1. Put the engine in inspection mode (maintenance mode) Click here.

      2. Connect the GTS to the DLC3.

      3. Start the engine.

      4. Turn the GTS on.

      5. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Evap Control.

      6. Open the fuel tank cap assembly to discharge the pressure in the fuel tank.

      7. Perform the "Activate the VSV for Evap Control" Active Test while the engine is idling.

      8. Close the fuel tank cap assembly and allow the engine to idle for 30 seconds.

      9. Open the fuel tank cap assembly again and check for inhalation sounds.

        OK
        No whooshing sounds (inhalation sound) are heard.

        Tech Tips

        If there is a smell of gasoline and a whooshing sound (exhalation sound) is heard, positive pressure in the fuel tank is being discharged. This does not indicate a malfunction.

  2. INSPECT CHARCOAL CANISTER ASSEMBLY (for Vacuum Measurement Method)

    Note

    When performing inspections with parts installed on the vehicle, be sure to remove the fuel tank cap.


    1. Remove the rear floor service hole cover Click here.

    2. Visually check the charcoal canister assembly for airtightness.


      1. Visually check the charcoal canister assembly for cracks or damage, and check that there is no gasoline smell.

    3. Inspect the positive pressure valve.


      1. A01FQAPE01
        Text in Illustration
        *a Port B
        A01FTNO Air

        Disconnect the fuel evaporation tube sub-assembly that is connected to port B, and block the removed fuel evaporation tube sub-assembly with a hose plug.

      2. Connect the inspection hose (the hose included with the vacuum pressure application device) to port B.

      3. Blow strongly into the hose at a pressure of 5 kPa (0.05 kgf/cm2, 0.7 psi).

        OK
        Confirm that air can be blown in through the hose.

    4. Inspect the vacuum pressure valve.


      1. A01FQGDE01
        Text in Illustration
        *a Vacuum Pump

        Connect the vacuum pump to the inspection hose and apply vacuum pressure.

        OK
        Confirm that the needle of the vacuum pump gauge has not increased from its initial position. (When applying vacuum pressure, the needle may quiver, but if the needle returns quickly to the initial position, then there is not a problem.)

    5. Inspect the air filter for clogs (without GTS).


      1. After starting and warming up the engine, idle the engine and check the vacuum pump gauge needle after 15 minutes.

        OK
        Confirm that the needle of the vacuum pump gauge has not increased from its initial position. (The needle may quiver due to engine vibration, etc., but if the needle returns quickly to the initial position, then there is not a problem.)

    6. Inspect the air filter for clogs (with GTS).


      1. Connect the GTS to DLC3.

      2. Start the engine.

      3. Turn the GTS on.

      4. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Evap Control.

      5. Perform the Active Test with the engine at idle speed.

        OK
        Confirm that the needle of the vacuum pump gauge has not increased from its initial position. (The needle may quiver due to engine vibration, etc., but if the needle returns quickly to the initial position, then there is not a problem.)

    7. Install the rear floor service hole cover Click here.