1998 — 2003 of release

Repair and operation of the car

Lexus RX 300
+ Lexus RX-300 cars
+ Governing bodies and methods of operation
+ Settings and routine maintenance of the car
+ Engine
+ Cooling systems of the engine, heating, ventilation and air conditioning
- Power supply system and production of the fulfilled gases
   - Power supply system
      General information and security measures
      Dropping pressure in fuel system
      Principle of functioning of a control system of fuel injection
      Checks of system of injection
      Removal and installation of the fuel pump, sensor of a reserve of fuel and regulator of pressure of fuel
      Removal and installation of fuel distributive highways and injectors
      Removal and installation of the fuel tank and fuel lines
      Removal and installation of the air cleaner
      Removal, installation and adjustment of the case of a throttle and TPS sensor
      Removal and installation of components of the ACIS system
   + Systems of release and decrease in toxicity of the fulfilled gases
+ Systems of electric equipment of the engine
+ Automatic transmission and interaxal differential
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schematic diagrams of electric connections


Removal, installation and adjustment of the case of a throttle and TPS sensor

Removal and installation

Components of installation of the case of a throttle

1 — Laying
2 — the throttle Case
3 — Perepuskna a cooling system hose
4 — the Cable of the drive of a butterfly valve

5 — an air cleaner Hose
6 — the Vacuum hose
7 — the Air hose
8 — the Smoothing receiver

Components of assembly of the case of a throttle

1 — throttle case Section No. 3
2 — the Protective plate
3 — the Sealing ring
4 — the TPS Sensor

5 — throttle case Section No. 1
6 — Laying
7 — throttle case Section No. 2
8 — the IAC Valve


  1. Empty the engine cooling system (see the Section Replacement of the Cooling Liquid (CL)).
  2. Disconnect a cable of the drive of a butterfly valve and remove an air cleaner hose (see the Section Removal and installation of the air cleaner).
  3. Separate sockets of an electrical wiring of the TPS sensor and a lapan of IAC.
  4. Disconnect perepuskny hoses of the cooling system of the engine, an air admixture hose, two hoses of giving of fuel evaporations and a vacuum hose from the throttle case.
  5. Give 3 nuts and remove the throttle case together with laying.
  6. At installation use new laying between the case of a throttle and the air distributor. Tighten fixture with the required efforts.
  7. At installation of the TPS sensor at first apply it to the throttle case, having turned on a corner 30÷60 a hail. clockwise, and then fix the sensor, having turned it against an hour hand.



  1. Giving a lock-nut and the adjusting screw on the party of opening, expose a gap between a screw head and the lever of a throttle on the party No. 1 (see illustrations).
  2. Gradually tightening the screw, bring it into situation in which it begins to concern the lever.

Do not draw the screw. Then turn out the screw on a quarter of a turn. Also record it in this situation a lock-nut.

  1. Repeat the described adjustment for the screw on the party of opening.

The adjusting screw from the provision of contacts with the lever should be tightened on 1/2÷3/4 of a turn.

  1. In conclusion check the throttle case (see the Section of Check of system of injection).

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