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
- 6. System of decrease in toxicity
   6.1. Technical characteristics
   6.2. Control system of ignition
   6.3. AIR system
   6.4. System termostatirovaniya (HAI system)
   6.5. System of fixing of an air zaslonka
   6.6. System of an otsechka of fuel when braking by the engine
   6.7. System of compensation of turns of idling at an engine overheat
   6.8. System of a priotkryvaniye of an air zaslonka
   - 6.9. System of electronic injection of fuel
      6.9.1. Processor block
   6.10. Good advice
+ 7. Transmission
+ 8. Brake system
+ 9. Suspension brackets and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electroschemes

6.9. System of electronic injection of fuel


Management of cистемой of injection of fuel is carried out by the onboard microcomputer called by the processor block (ECM block).

In the electronic control unit information from the various sensors tracing such working parameters of the engine as volume and temperature of sucked-in air, temperature of cooling liquid, engine turns, a mode of dispersal or braking by the engine, concentration of oxygen in exhaust gases etc. arrives. Signals are used by the electronic control unit for the correct determination of duration of injection of fuel. On the basis of the data received from sensors, the control unit defines optimum duration of injection of fuel.

In default the sensor the reserve scheme simulating the faulty sensor which provides preservation of road performance of the car before malfunction elimination joins. Repair and adjustment of system of injection is carried out in car-care center.

Observe the following safety rules:

  – before a detachment of any sockets always disconnect a safety cushion (see subsection 11.23), disconnect the battery from weight;
  – at installation of the storage battery observe polarity of connection of cables;
  – it is forbidden to subject to strong blows of a detail of system of electronic injection of fuel and system of decrease in toxicity during removal or installation;
  – be accurate during search of malfunctions (even short-term short circuit of conclusions of sockets can lead to the wrong results of check or to failure of one of numerous schemes);
  – it is forbidden to repair independently the processor block, or to open a cover of the case of the block;
  – do not allow water hit on system sensors at their survey during rainy weather;
  – at a sink of a compartment of the engine avoid water hit on sensors and sockets of system of injection.