Throttle Body Installation Details on 1.5L Models
1 - Gas cable; 2 - TPS wiring connector; 3 - Wiring connector for idle speed control servo; 4 - Vacuum hoses; 5 - Water path hoses; 6 - Throttle body; 7 - Sealing gasket
Throttle body installation details on 1.8L models
1 - Gas cable; 2 - TPS wiring connector; 3 - Wiring connector for idle speed control servo; 4 - Vacuum hoses; 5 - Vacuum hose (models with tempostat); 6 - Water path hoses; 7 - Throttle body; 8 - Sealing gasket
Throttle Body Installation Details on 1.6L and 2.0L DOHC Models
1 - Gas cable; 2 - Ventilation hose; 3 - Inlet air duct; 4 - Air sleeve C; 5 - Vacuum hose; 6 - Connectors for the electrical wiring of the IAC drive motor and the sensor-switch of the closed throttle position; 7 - TPS wiring connector; 8 - Transit hose of the water path; 9 - Bypass hose of the water path; 10 - Screw for fixing the ground plate; 11 - Throttle body support bracket and ground plate; 12 - Branch pipe for connecting the air duct; 13 - Sealing gasket; 14 - Throttle body; 15 - Sealing gasket
Throttle Body Installation Details on 3.0L SOHC and DOHC Models
1 - Gas cable; 2 - TPS wiring connector; 3 - Wiring connector for idle speed control servo (I - AC); 4 - Vacuum hoses; 5 - Water path hose; 6 - Vacuum tube; 7 - Throttle body; 8 - Sealing gasket
Throttle Body Installation Details on 3.5L Models
1 - Gas cable; 2 - Inlet air duct; 3 - Hoses of the heating path; 4 - Vacuum hose; 5 - TPS wiring connector; 6 - Electrical wiring connector for idle speed control servo; 7 - Throttle body; 8 - Sealing gasket
Removing
1. Details of the installation of the throttle body on various engines are shown in the illustrations.
2. Relieve pressure in the supply system (see Section Depressurizing the supply system).
3. Empty the cooling system.
4. Mark the position of the adjusting bolt on the throttle cable mounting flange (gas). Remove the bolt and disconnect the cable from the throttle actuator lever on the throttle body. Pull the cable aside.
5. Disconnect from the throttle body and take aside the ventilation hose and air supply hose.
6. Mark and disconnect vacuum hoses.
7. Mark and disconnect the electroconducting brought to the case of a throttle.
8. Disconnect the transit and bypass hoses of the water path from the base of the throttle body.
9. If equipped, disconnect the ground bar and remove the throttle body support bracket and ground plate from the engine.
10. Remove the air duct connection and its gasket.
11. Turn out fixing screws and remove the throttle case from the engine. Remove the sealing gasket - during installation it must be replaced without fail.
Installation
1. Thoroughly clean all mating surfaces, lay a new sealing gasket on the discharge chamber of the inlet pipeline.
2. Install the throttle body. Screw and tighten with the required effort fixing bolts.
3. After replacing the gasket, install the intake air duct connection.
4. If equipped, install the support bracket and ground plate. Screw in the mounting bolts and tighten them with the required force (15÷22 Nm).
5. Screw in the screw that secures the ground plate.
6. Connect the water path hoses to the throttle body and secure them with new clamps.
7. Following the compliance with the markings applied during the dismantling process, restore the original connection of the vacuum hoses and electrical wiring.
8. Connect the throttle cable by screwing the adjusting bolt into its original position. Check for proper cable adjustment.
9. Connect the intake duct and ventilation hose.
10. If removed, replace the battery and connect the wires to it (first positive, then negative).
11. Fill the engine with fresh coolant (see chapter Settings and ongoing maintenance).