FUEL SYSTEM ON-VEHICLE INSPECTION

PROCEDURE


  1. CHECK FUEL PUMP OPERATION AND INSPECT FOR FUEL LEAKS


    1. Connect the GTS to the DLC3.


      1. Turn the engine switch on (IG).

        Note

        Do not start the engine.

      2. Turn the GTS on.

      3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.


        Powertrain > Engine and ECT > Active Test
        Tester Display
        Control the Fuel Pump / Speed

    2. Check fuel pump operation.


      1. Check for pressure in the fuel inlet tube from the fuel line. Check that the sound of fuel flowing in the fuel tank can be heard.

        If there is no sound, check the instrument panel junction block, fuel pump, ECM and wiring connector.

    3. Inspect for fuel leaks.


      1. Check that there are no fuel leaks after performing maintenance anywhere on the system.

        If there are fuel leaks, repair or replace parts as necessary.

  2. CHECK FUEL PRESSURE


    1. Check the battery voltage.

      Click here

    2. Discharge the fuel system pressure.

      Click here

    3. Disconnect the cable from the negative (-) battery terminal.

      Note


      • After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work.

        Click here

      • When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

        Click here

    4. B003MCS

      Disconnect the No. 1 fuel hose.

      Click here

    5. B003NBXC01
      *1 Fuel Pressure Pulsation Damper Assembly
      *2 No. 1 Fuel Hose
      *a SST (Fuel Tube Connector)
      *b SST (Hose Band)
      *c SST (Hose)
      *d SST (T-Joint)
      *e SST (Hose Joint)
      *f SST (Gauge)

      Install SST (pressure gauge) as shown in the illustration.

      SST
      09268-45101   ( 09268-41250, 09268-41260, 09268-41280, 09268-41500, 09268-41700, 95336-08070 )

    6. Wipe off any gasoline.

    7. Reconnect the cable to the negative (-) battery terminal.

      Note

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

      Click here

    8. Operate the fuel pump.


      1. Connect the GTS to the DLC3.

      2. Turn the engine switch on (IG).

        Note

        Do not start the engine.

      3. Turn the GTS on.

      4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.


        Powertrain > Engine and ECT > Active Test
        Tester Display
        Control the Fuel Pump / Speed

    9. Measure the fuel pressure.

      Standard fuel pressure
      281 to 287 kPa (2.87 to 2.93 kgf/cm2, 41 to 42 psi)

      If the pressure is higher than the specification, replace the fuel pressure regulator.

      If the pressure is below the specification, check the fuel hoses and connectors, fuel pump, fuel filter and fuel pressure regulator.

    10. Start the engine.

    11. Measure the fuel pressure.

      Standard fuel pressure
      281 to 287 kPa (2.87 to 2.93 kgf/cm2, 41 to 42 psi)

      If the pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.

    12. Stop the engine.

    13. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.

      Standard fuel pressure
      147 kPa (1.5 kgf/cm2, 21 psi) or higher

      If the pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.

    14. Disconnect the cable from the negative (-) battery terminal and carefully remove SST and the fuel tube connector to prevent gasoline from spraying.

    15. Connect the No. 1 fuel hose.

      Click here

    16. Inspect for fuel leaks.

      Click here