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Fuel Injector ASSY: Replacement

  1. DISCHARGE FUEL SYSTEM PRESSURE (See  PRECAUTION   ) 
  2. REMOVE CYLINDER HEAD COVER NO.2 
    1. Remove the 4 nuts and cylinder head cover.
      Fig 1: Removing Cylinder Head Cover No. 2
      G03197737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE IGNITION COIL NO.1 
    1. Disconnect the 4 ignition coil connectors.
    2. Remove the 4 bolts and 4 ignition coils.
      Fig 2: Disconnecting Ignition Coil Connectors
      G03197738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE CYLINDER HEAD COVER SUB-ASSY 
    1. Disconnect the ventilation hose No. 2.
    2. Disconnect the ventilation hose.
      Fig 3: Disconnecting Ventilation Hose
      G03197739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 9 bolts, 2 nuts, 2 seal washers, and then remove the cylinder head cover.
      Fig 4: Removing Cylinder Head Cover Bolts, Nuts & Seal Washers
      G03197740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. DISCONNECT FUEL TUBE SUB-ASSY 
    1. Remove the fuel pipe clamp.
    2. Using SST, disconnect the fuel tube.

      SST 09268-21010

      1. Assemble SST to the connection of the fuel tube as shown in the illustration.
      2. Turn SST, align the retainers inside the connector with SST chamfered parts and insert the SST into the connector.
      3. Push in SST and the connector together towards the fuel tube assembly.
      NOTE:
      • Remove dirt or foreign objects on the connector before this work.
      • Do not forcibly bent and twist the nylon tube.
      • When the connector and pipe are stuck, push and pull the connector to release and disconnect and pull it out.
        Fig 5: Assembling SST To Connection Of Fuel Tube
        G03197741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Prevent the disconnected pipe and connector from being damaged and foreign objects from being introduced by covering them with a vinyl or plastic bag.
        Fig 6: Cross Section View Of Fuel Tube Sub-Assy
        G03197742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE FUEL DELIVERY PIPE SUB-ASSY 
    1. Disconnect the 4 fuel injector connectors.
    2. Remove the 3 bolts and then remove the fuel delivery pipe with the 4 fuel injectors.
      NOTE: Be careful not to drop the fuel injectors when removing the fuel delivery pipe.
    3. Remove the 2 spacers from the cylinder head.
      Fig 7: Disconnecting Fuel Injector Connectors
      G03197743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE FUEL INJECTOR ASSY 
    1. Pull out the 4 fuel injectors.
      Fig 8: Pulling Out Fuel Injectors
      G03197744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSTALL FUEL INJECTOR ASSY 
    1. Install new insulators onto each fuel injector.
    2. Apply a light coat of grease or gasoline to new O-rings and install them onto each fuel injector.
      Fig 9: Installing Insulators Onto Each Fuel Injector
      G03197745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Apply a light coat of grease or gasoline to the place where a fuel delivery pipe comes into contact with the O-ring.
    4. While turning the fuel injector clockwise and counterclockwise, push it to the fuel delivery pipe.
      NOTE:
      • Be careful not to twist the O-ring.
      • After installing the fuel injectors, check that they turn smoothly. If not, replace it with a new O-ring.
        Fig 10: Installing Fuel Injectors
        G03197746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL FUEL DELIVERY PIPE SUB-ASSY 
    1. Install the 2 spacers onto the cylinder head.
    2. Install the fuel delivery pipe and 4 fuel injectors together.

      Torque: 

      19 N.m (194 kgf.cm, 14 ft.lbf) for bolt A 

      9.0 N.m (92 kgf.cm, 80 in.lbf) for bolt B 

      NOTE:
      • Be careful not to drop the fuel injectors when installing the fuel delivery pipe.
      • Check that the fuel injectors rotate smoothly after installing the fuel delivery pipe.
        Fig 11: Installing Fuel Delivery Pipe & Fuel Injectors
        G03197747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the 4 fuel injector connectors.
  10. CONNECT FUEL TUBE SUB-ASSY 
    1. Connect the fuel tube.
      NOTE:
      • Check on the connected parts of the pipe for damage or foreign objects.
      • After finishing the connection, check if the pipe and connector are securely connected by pulling them.
    2. Install the fuel pipe clamp.
  11. INSTALL CYLINDER HEAD COVER SUB-ASSY 
    1. Apply seal packing to the 2 locations as shown in the illustration.

      Seal packing: Part No. 08826-00080 or equivalent 

      NOTE:
      • Remove any oil from the contact surface.
      • Install the cylinder head cover within 3 minutes of applying seal packing.
      • Do not start engine for at least 2 hours after installing.
        Fig 12: Applying Seal Packing To Locations
        G03197748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the cylinder head cover with the 9 bolts, 2 nuts and 2 seal washers.
    3. Using several steps, uniformly tighten the bolts and nuts in the sequence shown in the illustration.

      Torque: 10 N.m (102 kgf.cm, 7 ft.lbf) 

    4. Connect the ventilation hose.
    5. Connect the ventilation hose No. 2.
      Fig 13: Identifying Installation Sequence Of Cylinder Head Cover Bolts
      G03197749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSTALL IGNITION COIL NO.1 

    Torque: 9.0 N.m (92 kgf.cm, 80 in.lbf) 

  13. CHECK FOR FUEL LEAKS (See  ON-VEHICLE INSPECTION   ) 
  14. INSTALL CYLINDER HEAD COVER NO.2 
    1. Install the cylinder head cover.
    2. First tighten nut A, then tighten nut B.

      Torque: 7.0 N.m (71 kgf.cm, 62 in.lbf) 

      Fig 14: Installing Cylinder Head Cover No.2
      G03197750Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002