FUEL INJECTOR REMOVAL


  1. DISCHARGE FUEL SYSTEM PRESSURE


    1. Check that the battery positive voltage is above 12 V.

    2. Discharge the fuel system pressure Click here.

    3. Disconnect the negative terminal cable from the battery.

    4. A003DS3

      Pinch and pull the No. 1 fuel hose (fuel tube connector) to disconnect it from the fuel pressure pulsation damper assembly.

      CAUTION:


      • Always read the precautions Click here before disconnecting the fuel tube connector (quick type).

      • The fuel tube may spray fuel as a result of pressure that remains in it. Do not allow fuel to be sprayed in the engine compartment.

    5. A003F8BE01
      Text in Illustration
      *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 (Pressure 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 negative terminal cable.

    8. Operate the fuel pump.


      1. Connect the intelligent tester to the DLC3.

      2. Turn the ignition switch to ON.

        Note

        Do not start the engine.

      3. Turn the intelligent tester on.

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

    9. Measure the fuel pressure.

      Standard fuel pressure
      281 to 287 kPa (2.87 to 2.93 kgf/cm2, 40.8 to 41.7 psi)

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

      If the pressure is lower than the specification, check the fuel hoses and connections, fuel pump, fuel filter assembly and fuel pressure regulator assembly.

    10. Start the engine.

    11. Measure the fuel pressure.

      Standard fuel pressure
      281 to 287 kPa (2.87 to 2.93 kgf/cm2, 40.8 to 41.7 psi)

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

    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 more

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

    14. After checking the fuel pressure, disconnect the negative terminal cable and carefully remove SST and the fuel tube connector to prevent gasoline from spraying.

    15. Reconnect the No. 1 fuel hose (fuel tube connector) to the fuel pressure pulsation damper assembly.

  2. PRECAUTION

    Note

    After turning the ignition 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.

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

    Note

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

  4. REMOVE THROTTLE BODY ASSEMBLY

    Click here

  5. DISCONNECT NO. 1 FUEL HOSE


    1. A003DS3

      Disconnect the No. 1 fuel hose from the fuel pressure pulsation damper assembly Click here.

  6. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY

    Note

    Be careful not to drop the fuel injector assemblies when removing the fuel delivery pipe sub-assembly.


    1. Disconnect the vacuum hose from the fuel pressure regulator assembly.

    2. Slide the clamp and disconnect the No. 2 fuel hose from the fuel pressure regulator assembly.

    3. A003H4CE01
      Text in Illustration
      *A w/ Dual VVT-i
      *B w/o Dual VVT-i

      Disconnect the 4 fuel injector connectors.

    4. Remove the 2 bolts, fuel pulsation damper assembly and O-ring.

    5. Remove the 2 bolts and fuel delivery pipe sub-assembly together with the 4 fuel injector assemblies.

      Note

      Be careful not to drop the fuel injector assemblies when removing the fuel delivery pipe sub-assembly.

    6. Remove the 2 No. 1 delivery pipe spacers from the cylinder head sub-assembly.

    7. Remove the 4 injector vibration insulators.

    8. A003AY2E01
      Text in Illustration
      *A w/ Dual VVT-i
      *B w/o Dual VVT-i
      *a Protective Tape

      Using a screwdriver, pry out the 4 injector spacers and 4 O-rings from the cylinder head sub-assembly.

      Tech Tips

      Tape the screwdriver tip before use.

  7. REMOVE FUEL INJECTOR ASSEMBLY


    1. A003D73E01
      Text in Illustration
      *A w/ Dual VVT-i
      *B w/o Dual VVT-i
      A003DCD Pull Out

      Pull out the 4 fuel injector assemblies from the fuel delivery pipe sub-assembly.

    2. Remove the O-rings from the fuel injector assemblies.