Toyota Land Cruiser
FJ60, FJ62 and FJ80 1980-1997 of release
Repair and operation of the car
Toyota Land Cruiser
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling systems, heating
- 5. Fuel and exhaust systems
+ 5.1. Carburetor engines
- 5.2. Engines with fuel injection
5.2.1. Technical characteristics
5.2.2. Decompression of fuel system
+ 5.2.3. Fuel pump and pressure of fuel
5.2.4. Fuel pipes and joints
5.2.5. Fuel pump
5.2.6. Fuel level sensor
5.2.7. Air filter
5.2.8. Cable of the drive of a butterfly valve
- 5.2.9. System of electronic injection of fuel (EFI system)
18.104.22.168. Check of system of electronic injection of fuel
+ 22.214.171.124. Units of system of electronic injection of fuel
+ 6. System of decrease in toxicity
+ 7. Transmission
+ 8. Brake system
+ 9. Suspension brackets and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electrical circuitries
System of electronic injection of fuel of cars of 1988-92.
System of electronic injection of fuel of cars since 1993.
Cars are equipped with system of electronic injection of fuel (EFI system) which three subsystems – a fuel supply system, system of an intake of air and an electronic control system enter.
The fuel pump located in a tank provides fuel supply under constant pressure in the distributor from which fuel is evenly distributed on nozzles. From the distributor fuel moves to inlet canals of cylinders through nozzles. The amount of injectable fuel is controlled with high precision an electronic control unit (ESM-block). The regulator of pressure of fuel provides change of pressure of fuel according to depression on the soaking-up collector. The fuel filter is mounted between the fuel pump and the distributor of fuel and intended for purification of gasoline and protection of units of system of injection against failure.
System of an intake of air
The system of an intake of air consists of the air filter, the case of a butterfly valve and the channel connecting these two units. Air temperature sensor (IAT. the sensor) traces temperature of the selected air. The signal from the sensor arrives on an electronic control unit which provides a dosage of injectable fuel according to air temperature. The driver operates a butterfly valve. In process of opening of a butterfly valve the speed of the arriving air increases that leads to decrease in its temperature. The sensor registers change of air temperature and gives a signal on the ESM block which in turn increases a dose of injectable fuel.
Management of electronic injection of fuel and other systems is provided with the processor ESM-block. The microprocessor is a part of the ESM-block. On the block signals from a number of sensors which trace such parameters as air temperature on an entrance to cylinders, an angle of rotation of a butterfly valve, temperature of cooling liquid, engine speed, speed of the movement of the car and content of oxygen in exhaust gases arrive. On the basis of these data the control unit determines the fuel injection duration with which maintenance of an optimum ratio of gasoline and air in gas mixture is provided. Some of these sensors and the corresponding relays working from the control unit belong to system of decrease in toxicity and are not a part of system of electronic injection of fuel.