Toyota Land Cruiser
FJ60, FJ62 and FJ80 1980-1997 of release
Repair and car operation
Toyota Land Cruiser
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of cooling, 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. Gasoline pipe lines and joints
5.2.5. Fuel pump
5.2.6. Fuel level sensor
5.2.7. Air filter
5.2.8. Cable of a drive of a butterfly valve
- 5.2.9. System of electronic injection of fuel (EFI system)
188.8.131.52. Check of system of electronic injection of fuel
+ 184.108.40.206. 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. Electroschemes
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) into which three subsystems – system of supply of fuel enter, system of a fence of air and an electronic control system.
The fuel pump located in a tank, provides supply of fuel 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 injected fuel is supervised with high precision the electronic control unit (ESM-blokom). The regulator of pressure of fuel provides change of pressure of fuel according to depression on a 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 a fence of air
The system of a fence 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 selected air. The signal from the sensor arrives on the electronic control unit which provides a dosage of injected fuel according to air temperature. A butterfly valve the driver operates. In process of opening of a butterfly valve speed of arriving air that leads to fall of its temperature increases. The sensor registers change of air temperature and gives a signal on the ESM block which in turn increases a dose of injected fuel.
Management of electronic injection of fuel and other systems is provided processor ESM-blokom. Structure ESM-bloka includes the microprocessor. On the block signals from a number of sensors which trace such parameters as air temperature on an entrance in cylinders, a butterfly valve angle of rotation, temperature of cooling liquid, number of turns of the engine, speed of movement of the car and the content of oxygen in exhaust gases arrive. On the basis of these data the control unit defines duration of injection of fuel at 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 the system of electronic injection of fuel are not a part.