FUEL SYSTEM PRECAUTION


  1. BEFORE WORKING ON FUEL SYSTEM


    1. Before inspecting and repairing the fuel system, 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 negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

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    2. Do not smoke or work near fire when handling the fuel system.

    3. Keep fuel away from rubber or leather parts.

  2. DISCHARGE FUEL SYSTEM PRESSURE

    CAUTION:


    • Make sure the engine coolant temperature is 60°C (140°F) or less when performing this procedure.

    • Do not disconnect any part of the fuel system until you have discharged the fuel system pressure.

    • Pressure will still remain in the fuel lines even after performing the following procedure. When disconnecting a fuel line, cover it with a piece of cloth to prevent fuel from spraying or coming out.


    1. When discharging fuel system pressure by disconnecting the FUEL PMP (20 A) fuse:


      1. Remove the No. 1 engine room relay block and No. 1 junction block assembly cover.

      2. Remove the FUEL PMP (20 A) fuse.

      3. Start the engine. After the engine has stopped on its own, turn the engine switch off.

        Note

        Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.

      4. Crank the engine again and make sure that the engine does not start.

        Tech Tips

        DTC P0171/P0174 (System Too Lean), P1603 (Engine Stall History), P1604 (Startability Malfunction) or P1605 (Rough Idling) may be stored. Clear the DTCs before proceeding to the next step.


      5. Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.

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

        Note

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

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      7. Install the FUEL PMP (20 A) fuse.

      8. Install the No. 1 engine room relay block and No. 1 junction block assembly cover.

    2. When discharging fuel system pressure by disconnecting the fuel pump connector:


      1. Remove the rear seat cushion assembly.

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      2. Remove the rear seat cushion lock hook.

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      3. B0076U8C01
        *a Protective Tape

        Using a clip remover with its tip wrapped with protective tape, remove the rear floor service hole cover and butyl tape.

      4. Disconnect the fuel pump connector.

      5. Start the engine. After the engine has stopped on its own, turn the engine switch off.

        Note

        Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.

      6. Crank the engine again and make sure that the engine does not start.

        Tech Tips

        DTC P0171/P0174 (System Too Lean), P1603 (Engine Stall History), P1604 (Startability Malfunction) or P1605 (Rough Idling) may be stored. Clear the DTCs before proceeding to the next step.


      7. Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.

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

        Note

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

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      9. Remove any remaining butyl tape from the rear floor service hole cover and vehicle body.

      10. Clean and degrease the installation surfaces of the rear floor service hole cover and vehicle body.

      11. Connect the fuel pump connector.

      12. Install the rear floor service hole cover with new butyl tape.

      13. Install the rear seat cushion lock hook.

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      14. Install the rear seat cushion assembly.

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  3. FUEL LINE


    1. When disconnecting a high-pressure fuel line, a large amount of fuel will spray. Perform the following procedure:


      1. Discharge fuel system pressure.

      2. Disconnect the fuel tube.

      3. Drain the fuel remaining inside the fuel pump tube into a container.

      4. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

    2. Quick Type A:

      Perform the following procedure when disconnecting a fuel tube connector.

      Note

      Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.


      1. B0077H2C02
        *1 EFI Fuel Pipe Clamp

        Remove the EFI fuel pipe clamp from fuel tube connector.

      2. Check that there is no dirt or other foreign matter around the fuel tube connector before disconnecting it. Clean the joint if necessary.

      3. B0077FXC31
        *a Retainer
        *b O-ring
        *c Fuel Tube Connector
        *d Nylon Tube
        *e Fuel Pipe
        B0073AQ Pinch
        B0077IM Pull

        Pinch the retainer of the fuel tube connector, and then pull the fuel tube connector off of the fuel pipe.

        Note

        Be sure to disconnect the fuel tube connector by hand.

      4. If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.

        Note


        • Be sure to disconnect the fuel tube connector by hand.

        • Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.

        • Do not forcibly bend, twist or turn the nylon tube.

      5. Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.

      6. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

    3. Quick Type A:

      Perform the following procedure when connecting a fuel tube connector.

      Note

      Check if there is any damage or foreign matter on the connecting parts of the fuel lines.


      1. Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.

      2. B0075AQC01
        B0073AQ Pull

        After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      3. Install the EFI fuel pipe clamp to the fuel tube connector.

      4. Inspect for fuel leaks.

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    4. Quick Type B:

      Perform the following procedure when disconnecting a fuel tube connector.

      Note

      Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.


      1. B0074BPC02
        *a Retainer
        *b Fuel Pipe
        *c Nylon Tube
        *d Fuel Tube Connector
        *e O-ring
        *f Claw
        B0073AQ Push
        B0077IM Pull out
        B0077LI Pull off

        Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.

        Note

        Be sure to disconnect the fuel tube connector by hand.

      2. If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.

        Note


        • Be sure to disconnect the fuel tube connector by hand.

        • Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.

        • Do not forcibly bend, twist or turn the nylon tube.

      3. Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.

      4. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

    5. Quick Type B:

      Perform the following procedure when connecting a fuel tube connector.

      Note

      Check if there is any damage or foreign matter on the connecting parts of the fuel lines.


      1. B0077PSC02
        *a Retainer
        *b Claw
        B0073AQ Push
        B0077IM Push in

        Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.

      2. Connect the fuel lines and push in the retainer to engage the 2 claws. Check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      3. Inspect for fuel leaks.

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    6. Quick Type C:

      Perform the following procedure when disconnecting a fuel tube connector.

      Note

      Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.


      1. B0074D1C04
        *a Retainer
        *b Claw
        B0073AQ Push
        B0077IM Pull out
        B0077LI Pull off

        Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.

        Note

        Be sure to disconnect the fuel tube connector by hand.

      2. B0077WFC04
        *a Retainer
        *b Fuel Tube Connector
        *c O-ring
        *d Fuel Pipe

        If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.

        Note


        • Be sure to disconnect the fuel tube connector by hand.

        • Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has an O-ring that seals the fuel pipe.

      3. Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.

      4. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

    7. Quick Type C:

      Perform the following procedure when connecting a fuel tube connector.

      Note

      Check if there is any damage or foreign matter on the connecting parts of the fuel lines.


      1. B0073F6C03
        *a Retainer
        *b Claw
        B0073AQ Push
        B0077IM Push in

        Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.

      2. Connect the fuel lines and push in the retainer to engage the 2 claws. Check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      3. Inspect for fuel leaks.

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    8. B0073L8C03
      *a Fuel Tube Connector
      *b Nylon Tube
      *c Ethylene Propylene Diene Monomer (EPDM) Rubber Protector

      Observe the following precautions when handling a nylon tube:

      Note


      • Do not twist the nylon tube of the fuel tube connector or fuel tube connector when connecting it.

      • Do not remove the Ethylene Propylene Diene Monomer (EPDM) rubber protector on the outside of the nylon tube.

      • Do not pinch or kink the nylon tubes to prevent fuel leaks.

  4. FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY

    Note


    • B0074CJC01
      *a Tube

      Do not disconnect the tube shown in the illustration when disassembling the fuel suction tube with pump and gauge assembly. Doing so will cause reassembly of the fuel suction tube with pump and gauge assembly to be impossible as the tube is pressed into the fuel suction plate sub-assembly.

    • When replacing the fuel filter, replace it together with the fuel suction plate sub-assembly.

  5. INSPECT FOR FUEL LEAK


    1. Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs.

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