Fuel Injector Installation

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fe Fuel. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSTALL INJECTOR

  2. INSTALL FUEL DELIVERY PIPE

  3. CONNECT FUEL MAIN TUBE

  4. INSTALL INTAKE AIR SURGE TANK

  5. CONNECT VENTILATION HOSE

  6. CONNECT UNION TO CHECK VALVE HOSE

  7. CONNECT WATER BY-PASS HOSE

  8. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE

  9. CONNECT NO. 2 VENTILATION HOSE

  10. ADD ENGINE COOLANT

  11. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

  12. CHECK FOR COOLANT LEAKAGE

  13. CHECK FOR FUEL LEAKAGE

  14. CHECK FOR ENGINE OIL LEAKAGE

  15. INSTALL V-BANK COVER

  16. INSTALL ENGINE ROOM SIDE COVER RH

  17. INSTALL COOL AIR INTAKE DUCT SEAL

  18. INSTALL ENGINE UNDER COVER

  19. PERFORM INITIALIZATION

  20. WARM UP ENGINE

Fuel Injector -- Installation



1. INSTALL INJECTOR


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Install new insulators to each fuel injector.

  1. Apply a light coat of grease or gasoline to a new O-ring and install it to the injector.



    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Apply a light coat of grease or gasoline where the delivery pipe contacts the O-ring.

  1. To install the fuel injector into the fuel delivery pipe, push the fuel injector while turning it right and left.

    NOTICE:
    1. Be careful not to twist the O-ring.
    2. After installing the fuel injector, check that it turns smoothly. If not, reinstall the it with a new O-ring.
  1. Position the injector connector outward.



2. INSTALL FUEL DELIVERY PIPE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Place the fuel delivery pipe and the 6 fuel injectors together to the intake manifold.

  1. Temporarily install the 6 bolts which are used to hold the fuel delivery pipe to the intake manifold.

  1. Check that the fuel injectors rotate smoothly.

    HINT:
    If fuel injectors do not rotate smoothly, the probable cause is incorrect installation of O-rings. If so, replace the O-rings.


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Position the fuel injector connector outward.

  1. Tighten the 5 bolts which are used to hold the fuel delivery pipe to the intake manifold.

    Torque:
    21 N*m{214 kgf*cm, 15 ft.*lbf}
  1. Connect the No. 1 fuel hose to the cylinder head cover with the bolt.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}
  1. Connect the 6 fuel injector connectors.



3. CONNECT FUEL MAIN TUBE


Lexus Gs430, Gs300. Uzs190 Grs190
NOTICE:
Before installing the fuel hose's connectors to the fuel pipe, check the connector for damage and foreign matter.
  1. Connect the connector to the fuel main pipe. Push the two parts together firmly until a "click" sound is heard. Then attach the lock claws to the connector by pushing down on the connector cover.



    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Check that the connector and fuel main pipe are securely connected by trying to pull them apart.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the fuel pipe clamp.



4. INSTALL INTAKE AIR SURGE TANK


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Install a new gasket to the intake air surge tank.

  1. Install the intake air surge tank with the 2 nuts.

    Torque:
    16 N*m{163 kgf*cm, 12 ft.*lbf}
  1. Using a 5 mm hexagon socket wrench, install the 4 bolts.

    Torque:
    18 N*m{184 kgf*cm, 13 ft.*lbf}


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the 2 surge tank stays with the 4 bolts.

    Torque:
    21 N*m{214 kgf*cm, 15 ft.*lbf}
  1. For Chinese specification:
    Connect the water hose joint with the bolt.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}
  1. For except Chinese specification:
    Connect the water by-pass pipe with the bolt.

    Torque:
    10 N*m{102 kgf*cm, 7 ft.*lbf}
  1. Install the 3 wire harness clamps.

  1. Connect the IACV connector.

  1. Connect the throttle motor connector.



5. CONNECT VENTILATION HOSE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the ventilation hose to the ventilation valve.



6. CONNECT UNION TO CHECK VALVE HOSE
  1. Connect the hose to the surge tank.



7. CONNECT WATER BY-PASS HOSE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the 2 water by-pass hoses to the throttle body.



8. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Install the air cleaner cap with air cleaner hose with the 4 clamps and hose clamp.

    HINT:
    Be sure to install the air cleaner assembly so that the screw part of the hose clamp is as shown in the illustration.


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the VSV (for EVAP) to the air cleaner hose.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the MAF meter connector and clamp to the air cleaner.



9. CONNECT NO. 2 VENTILATION HOSE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the ventilation hose to the cylinder head cover with the clamp.



10. ADD ENGINE COOLANT
NOTICE:
Before adding engine coolant, turn the A/C switch OFF.
  1. Tighten all the plugs and fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

    Torque:
    12.7 N*m{130 kgf*cm, 9 ft.*lbf} for cylinder block drain cock plug
  1. Add engine coolant.

    Specified capacity:
    9.1 liters (9.6 US qts, 8.0 lmp. qts)
    NOTICE:
    When pressing the radiator hose:
    1. Wear protective gloves.
    1. Be careful as the radiator hose is hot.
    1. Keep your hands away from the radiator fan.
    HINT:
    1. TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
    1. Please contact your TOYOTA dealer for further details.
    1. The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the engine coolant starts to flow inside the hose.
  1. Slowly pour coolant into the radiator reservoir until it reaches the FULL line.

  1. Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
    If the coolant level is low, add coolant.

  1. Install the radiator cap and reservoir cap.

  1. Bleed air from the cooling system.

    NOTICE:
    Before starting the engine to warm up the engine, turn the A/C switch OFF.

    1. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.

      HINT:
      The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the engine coolant starts to flow inside the hose.
      NOTICE:
      When pressing the radiator hoses:
      1. Wear protective gloves.
      1. Be careful as the radiator hoses are hot.
      1. Keep your hands away from the radiator fan.
    2. Maintain the engine speed at 2,000 to 2,500 rpm.

    3. Press the inlet and outlet radiator hoses several times by hand to bleed air.

      NOTICE:
      When pressing the radiator hoses:
      1. Wear protective gloves.
      1. Be careful as the radiator hoses are hot.
      1. Keep your hands away from the radiator fan.
  1. Stop the engine, and wait until the engine coolant cools down to ambient temperature.

    CAUTION:
    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Check the coolant level in the radiator reservoir.
    If the coolant level is low, add SLLC to the radiator reservoir FULL line.



11. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL


12. CHECK FOR COOLANT LEAKAGE


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
CAUTION:
Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
  1. Fill the radiator with coolant and attach a radiator cap tester.

  1. Warm up the engine.

  1. Using a radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf/cm, 17 psi), and check that the pressure does not drop.
    If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the heater core, cylinder block and head.



13. CHECK FOR FUEL LEAKAGE
  1. Start the engine, and check that there are no fuel leaks after performing maintenance anywhere on the system.



14. CHECK FOR ENGINE OIL LEAKAGE
  1. Start the engine, and check that there are no oil leaks after performing maintenance.



15. INSTALL V-BANK COVER


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the V-bank cover with the 2 nuts.

    Torque:
    5.0 N*m{51 kgf*cm, 44 in.*lbf}


16. INSTALL ENGINE ROOM SIDE COVER RH


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Install the side cover with the 2 clips and nut.



17. INSTALL COOL AIR INTAKE DUCT SEAL


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Fuel.Fuel System.Fuel Injector  Installation
  1. Install the intake duct seal with the 7 clips.



18. INSTALL ENGINE UNDER COVER


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the under cover with the 10 bolts and 3 clips.



19. PERFORM INITIALIZATION
  1. Perform initialization (Click here).

    NOTICE:
    Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.


20. WARM UP ENGINE
  1. After the engine is warmed up, check that the maintained parts operate normally.