Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and car operation



Тойота 4Раннер
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. Engines
+ 4. Systems of heating, ventilation
- 5. Fuel and exhaust systems
   5.1. Specifications
   5.2. An order декомпрессии fuel system
   + 5.3. The fuel pump and pressure of fuel
   5.4. Hoses and connections
   5.5. A fuel tank
   5.6. The fuel pump
   5.7. The gauge of level of fuel
   5.8. The air filter
   5.9. A cable throttle заслонки
   - 5.10. System of electronic injection of fuel (EFI-system)
      5.10.1. EFI-system check
   + 5.11. Units of system of injection of fuel
   5.12. Exhaust system service
   + 5.13. System of decrease in toxicity of the fulfilled gases
+ 6. Transmissions
+ 7. Transmission elements
+ 8. Brake system
+ 9. A suspension bracket and a steering
+ 10. A body
+ 11. An electric equipment
+ 12. Electroschemes





5.10. System of electronic injection of fuel (EFI-system)
THE GENERAL DATA

Units of system of electronic injection of fuel of 4-cylinder engines

1. A ventilation zolotnik картера
2. The distributor of fuel and an atomizer
3. The gauge of an angle of rotation throttle заслонки
4. The gauge recycling
5. The levelling chamber
6. A diagnostic socket
7. The assembly block
8. The pneumoshock-absorber
9. A regulator of pressure of fuel
10. The air filter
11. The gauge of speed of a stream

Units of system of electronic injection of fuel of engines V6 of 3,4 l

1. The air filter
2. The gauge of speed of a stream
3. The gauge of an angle of rotation throttle заслонки
4. The gauge recycling
(Under the levelling chamber)
5. The levelling chamber
6. A regulator of pressure of fuel
7. A diagnostic socket
8. The assembly block

Cars are equipped by system of electronic injection of fuel (EFI-system) into which three subsystems enter:

  – Fuel system;
  – System of a fence of air;
  – An electronic control system.

FUEL SYSTEM

The fuel pump located in a tank, provides fuel giving under constant pressure in the distributor from which fuel is in regular intervals distributed on atomizers. From the distributor fuel moves in inlet channels of cylinders through atomizers. The quantity of injected fuel is strictly supervised by the electronic block of management (ESM-BLOCK). The regulator of pressure of fuel provides change of pressure of fuel according to depression on a soaking up collector.

SYSTEM OF THE FENCE OF AIR

The system of a fence of air consists of the air filter, the chamber throttle заслонки and the channel connecting these two units. The gauge of temperature of air (IAT-gauge) traces temperature of sucked in air. The signal from the gauge arrives on the electronic block of management which provides a dosage of injected fuel according to air temperature. Throttle заслонкой the driver operates. In process of opening throttle заслонки speed of arriving air that leads to fall of its temperature increases. The gauge registers change of temperature of air and gives a signal on block ESM which in turn gives a signal on atomizers.

THE ELECTRONIC BLOCK MANAGEMENTS (ESM-BLOCK)

Management of electronic injection of fuel and other systems is provided with the processor block. The block structure includes a microcomputer. On the management block signals from variety of gauges which trace such parametres as air temperature on an input in cylinders, an angle of rotation throttle заслонки arrive, etc. On the basis of this data the management block defines duration of injection of fuel at which maintenance of an optimum parity of gasoline and air in a gas mixture is provided.

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