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
- 6. System of decrease in toxicity
   6.1. Technical characteristics
   6.2. Control system of ignition
   6.3. AIR system
   6.4. System of a termostatirovaniye (HAI system)
   6.5. System of fixing of the air gate
   6.6. System of a cut-off 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 the air gate
   - 6.9. System of electronic injection of fuel
      6.9.1. Processor block
   6.10. Useful tips
+ 7. Transmission
+ 8. Brake system
+ 9. Suspension brackets and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electrical circuitries


6.9. System of electronic injection of fuel


Control of system of injection of fuel is exercised of the onboard microcomputer called by the processor block (ECM block).

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

In case of refusal the sensor the reserve scheme imitating 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 service.

Follow 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 rechargeable 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 result in 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 block case cover;
  – do not allow hit of water on system sensors at their survey during rainy weather;
  – at a sink of a compartment of the engine avoid hit of water on sensors and sockets of system of injection.