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)
         5.2.9.1. Check of system of electronic injection of fuel
         + 5.2.9.2. 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




5.2.9. System of electronic injection of fuel (EFI system)

GENERAL INFORMATION

System of electronic injection of fuel of cars of 1988-92.

1. Regulator of pressure of fuel
2. Vacuum valve of a regulator
3. Vacuum valve of a retsirkulyatsiya
4. Modulyatsionny valve of a retsirkulyatsiya
5. Main valve of a retsirkulyatsiya
6. Sensor of temperature of gases of system of a retsirkulyatsiya
7. Starting nozzle
8. Ignition distributor
9. Coil
10. Electronic block of ignition
11. Starter
12. Conditioner
13. Battery
14. Control lamp of diagnostics of the engine
15. The blocking switch
16. Sensor of inclusion of a forward leading axis
17. Sensor of speed
18. Conclusion of the diagnostic TE1 socket
19. To the ignition lock
20. Oxygen sensor
21. Air pump
22. Air temperature sensor
23. Stream measuring instrument
24. Tank
25. Fuel filter
26. Sensor of an angle of rotation of a zaslonka
27. Suppressor of pulsations
28. Valve of a regulator of turns of idling
29. Nozzle
30. Relay of a starting nozzle
31. Contact sensor of temperature of liquid
32. Analog sensor of temperature of liquid

System of electronic injection of fuel of cars since 1993.

1. Vacuum valve of pulse system of supply of air
2. Modulyatsionny valve of a retsirkulyatsiya
3. Vacuum valve of a retsirkulyatsiya
4. Main valve of a retsirkulyatsiya
5. Pneumoshock-absorber
6. Vacuum valve of a regulator of pressure
7. Fuel filter
8. Sensor of an angle of rotation of a zaslonka
9. Stream measuring instrument
10. The air temperature sensor in a soaking-up collector
11. Air filter
12. A tank with an absorber
13. Vacuum distributor
14. The vacuum valve for a control system
15. Ignition distributor
16. Exhaust silencer
17. Tank
18. Resistor of the fuel pump
19. Relay of turning on of the fuel pump
20. Oxygen sensor
21. Converter
22. Ignition block
23. The sensor of temperature of gases in an inlet collector
24. The blocking switch
25. Switch of a signal of braking
26. Battery
27. DLC1 switch
28. Starter
29. Conditioner
30. Sensor of speed
31. Main relay of injection
32. Relay of a chain of the fuel pump
33. To the ignition lock
34. Nozzle
35. Denatonatsiya sensor
36. Thermovacuum distributive valve

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.

Fuel 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.

Electronic control system

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.