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Home >> Lexus >> 2007 >> GS 450h >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel >> FUEL INJECTOR (for Port Injection) >> Installation

FUEL INJECTOR (for Port Injection): Installation

  1. INSTALL FUEL INJECTOR ASSEMBLY 
    1. Apply gasoline to 2 new O-rings and install them to the injector.
      NOTE: Check that there is no damage or foreign material in the groove of the injector when installing the injector's O-rings.
      Fig 1: Identifying O-Rings
      G05303122Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the fuel injector assemblies to the fuel delivery pipe.
      NOTE:
      • When the injector does not rotate smoothly, the O-ring may be pinched. Remove the injector and install a new O-ring to the injector.
      • Make sure that the injector is between the plastic stopper parts labeled A in the illustration.
      Fig 2: Identifying Fuel Injector Assembly
      G05286916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL FUEL DELIVERY PIPE SUB-ASSEMBLY 
    1. Install the 4 delivery pipe spacers to the intake manifold.
    2. Install the delivery pipe (with injector) to the intake manifold.
      NOTE: When the injector does not rotate smoothly, the O-ring may be pinched. Remove the injector and install a new O-ring to the injector.
      Fig 3: Identifying Delivery Pipe Sub-Assembly
      G05286917Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the 4 bolts.

      Torque: 17 N*m (173 kgf*cm, 13 ft.*lbf) 

      Fig 4: Identifying Fuel Delivery Pipe Subassembly Bolts
      G05286905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Connect the 6 injector connectors and 2 clamps.
      Fig 5: Locating Injector Connectors And Clamps
      G05286904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Push in the fuel tube connector to the delivery pipe and push up the retainer to engage the claws.
      NOTE:
      • Check for damage or foreign objects on the connected part.
      • After connecting, check that the fuel tube connector and the pipe are securely connected by pulling on them.
        Fig 6: Pushing Fuel Tube Connector To Delivery Pipe
        G05303135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. After connecting the fuel tube, align the paint marks on the delivery pipe.
  3. INSTALL INTAKE AIR SURGE TANK 
    NOTE: Do not apply oil to the bolts as listed below:
    RESISTANCE REFERENCE

    Tightening Parts
    Intake air surge tank and Intake manifold
    Surge tank stay and Intake air surge tank
    Fig 7: Aligning Paint Marks On Delivery Pipe
    G05303136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Install a new gasket to the intake air surge tank.
    2. Install the intake air surge tank with the 2 nuts.

      Torque: 16 N*m (163 kgf*cm, 12 ft.*lbf) 

    3. Using a 5 mm hexagon socket wrench, install the 6 bolts.

      Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf) 

      Fig 8: Locating Intake Air Surge Tank With Nuts
      G05286902Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Install the surge tank stay to the intake air surge tank with the bolt.

      Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) 

      Fig 9: Locating Intake Air Surge Tank With Bolt
      G05286901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Install the water hose joint to the intake air surge tank with the bolt.

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

      Fig 10: Locating Water Hose Joint To Intake Air Surge Tank With Bolt
      G05286900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Connect the 4 wire harness clamps to the intake air surge tank.
      Fig 11: Locating Wire Harness Clamps To Intake Air Surge Tank
      G05286899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Connect the ventilation hose, union to check valve hose and water by-pass hose to the intake air surge tank.
      Fig 12: Locating Valve Hose And Water By-Pass Hose To Intake Air Surge Tank
      G05303113Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Install the purge VSV to the intake air surge tank with the bolt.

      Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf) 

    9. Connect the purge line hose to the intake air surge tank.
      Fig 13: Locating Vacuum Switching Valve Assembly To Intake Air Surge Tank With Bolt
      G05286897Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY  (See INSTALLATION )
  5. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE  (See INSTALLATION )
  6. CONNECT NO. 2 VENTILATION HOSE  (See INSTALLATION )
  7. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY  (See INSTALLATION )
  8. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY LH  (See INSTALLATION )
  9. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY RH  (See INSTALLATION )
  10. INSTALL FRONT FENDER TO COWL SIDE SEAL LH  (See INSTALLATION )
  11. INSTALL FRONT FENDER TO COWL SIDE SEAL RH  (See INSTALLATION )
  12. INSTALL FRONT UPPER FENDER PROTECTOR LH  (See INSTALLATION )
  13. INSTALL FRONT UPPER FENDER PROTECTOR RH  (See INSTALLATION )
  14. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
  15. INSTALL SERVICE PLUG GRIP  (See INSTALLATION )
  16. ADD ENGINE COOLANT  (See REPLACEMENT )
  17. CHECK FOR ENGINE COOLANT LEAK  (See COOLING SYSTEM )
  18. CHECK FOR FUEL LEAK (See  ON-VEHICLE INSPECTION   ) 
  19. INSTALL V-BANK COVER SUB-ASSEMBLY  (See INSTALLATION )
  20. INSTALL ENGINE ROOM SIDE COVER LH  (See INSTALLATION )
  21. INSTALL ENGINE ROOM SIDE COVER RH  (See INSTALLATION )
  22. INSTALL COOL AIR INTAKE DUCT SEAL  (See INSTALLATION )
  23. CHECK FUNCTION OF THROTTLE BODY WITH MOTOR ASSEMBLY  (See ON-VEHICLE INSPECTION )
  24. PERFORM INITIALIZATION 
    1. Perform initialization (see INITIALIZATION (2006/02-2006/07) ).
      NOTE: Certain systems need to be initialized after reconnecting the cable to the negative (-) battery terminal.
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