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)
+ 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. Engines with fuel injection
GENERAL INFORMATION

Into structure of fuel system enter:

  – fuel tank;
  – the electric fuel pump (it is mounted in a tank);
  – main relay of system of injection and relay of the fuel pump;
  – nozzles;
  – regulator of pressure of fuel;
  – air filter;
  – butterfly valve case.

Cars of 1988-92 with the engine 3F-E are equipped with system of electronic injection of fuel (EFI system).

Cars since 1993 with the engine 1FZ-FE are equipped with advanced system of direct injection. The injection system on later models differs little changes of systems of regulation of pressure and monitoring of a consumption of air.

SYSTEM OF ELECTRONIC INJECTION OF FUEL

In system of direct injection fuel is entered into each cylinder through nozzles. System of injection the processor block (ECM block) which sets duration of impulses (amount of fuel) in reply to operates signaling from various sensors of the engine. The amount of air in gas mixture is set by a butterfly valve. Pressure of fuel is regulated by means of the vacuum distributive valve (VSV valve). On the heated-up engine the valve reduces pressure of fuel at start and impoverishes a mix. On late models management of the VSV valve of the obespechivayetsyaprotsessorny block, on early models – the special monitoring system of start-up of the heated-up engine (High Temperature Line-Up Pressure system).

FUEL PUMP AND HIGHWAYS

Circulation of fuel is provided with the electropump through pair of steel tubes. Return of the evaporated fuel to a tank is provided with catching system through a separate tube. The pump works at receipt of basic impulses from the ignition block on the processor block. In the absence of these impulses the pump is disconnected later 2–3 seconds.

EXHAUST SYSTEM

The system structure in addition includes the sensor of oxygen and 3-componental converter which treats system of purification of exhaust gases and is built in in an exhaust pipe for the purpose of decrease in toxicity of emissions.