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Fuel Injector ASSY: Replacement

  1. DISCHARGE FUEL SYSTEM PRESSURE (See  FUEL SYSTEM  ) 
  2. REMOVE CYLINDER HEAD COVER NO. 2 
    1. Remove the 4 nuts and cylinder head cover.
      Fig 1: Removing Cylinder Head Cover No. 2
      G03097380Courtesy 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: Removing Ignition Coil No. 1
      G03097381Courtesy 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 No. 2 And Ventilation Hose
      G03097382Courtesy 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
      G03097383Courtesy 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 Fig 5.
        Fig 5: Disconnecting Fuel Tube
        G03097384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.
        Fig 6: Removing Dirt Or Foreign Objects On Connector
        G03097385Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • 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.
      • Prevent the disconnected pipe and connector from being damaged and foreign objects being introduced by covering them with a vinyl or plastic bag.
  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: Removing Fuel Delivery Pipe Sub-Assy
    G03097386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE FUEL INJECTOR ASSY 
    1. Pull out the 4 fuel injectors.
      Fig 8: Removing Fuel Injector Assy
      G03097387Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSTALL FUEL INJECTOR ASSY 
    1. Install new insulators onto each fuel injector.
      Fig 9: Installing Insulators On Each Fuel Injector
      G03097388Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply a light coat of grease or gasoline to new O-rings and install them onto each fuel injector.
    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.
      Fig 10: Pushing Fuel Injector To Fuel Delivery Pipe Turning Clockwise And Counterclockwise
      G03097389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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.
  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 
      Fig 11: Identifying Fuel Delivery Pipe Sub-Assy Bolts
      G03097390Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.
    3. Connect the 4 fuel injector connectors.
  10. CONNECT FUEL TUBE SUB-ASSY 
    1. Connect the fuel tube.
      NOTE:
      • Check 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 Fig 12.

      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
      G03097391Courtesy 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 Fig 13.

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

      Fig 13: Tightening Cylinder Head Cover Bolts And Nut In Sequence
      G03097392Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Connect the ventilation hose.
    5. Connect the ventilation hose No. 2.
  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
      G03097393Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002