FORD SCORPIO

1985-1994 of release

Repair and operation of the car



Ford Skorpio
+ 1.1. Identification of the car
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling system
- 5. Fuel system
   5.1. Technical characteristic
   5.2. Fuel
   5.3. Unleaded gasoline of V6, 2.4 engines and 2.9 dm3
   + 5.4. System of air supply
   + 5.5. PIERBURG carburetor
   + 5.6. WEBER 2V carburetor
   + 5.7. WEBER 2V TLD carburetor
   - 5.8. System of injection of fuel
      5.8.1. Adjustment of turns of idling and quality of mix
      5.8.2. Removal and installation of the sensor of provision of a butterfly valve
      5.8.3. Removal and installation of the valve of management of idling turns
      5.8.4. Removal and installation of measuring instruments of a stream of air
      5.8.5. Removal and installation of fuel nozzles
      5.8.6. Removal and installation of the temperature sensor of the fuel highway
      5.8.7. Removal and installation of the regulator of pressure of fuel
      5.8.8. Removal and installation of the case of a butterfly valve on the DOHC engine
      5.8.9. Removal and installation of the oxygen sensor (HEGO)
      5.8.10. Removal and installation of a coal adsorber
      5.8.11. Removal and installation of the electromagnetic valve of a coal adsorber
   5.9. Removal and installation of an inlet collector
+ 6. Coupling
+ 7. Transmissions
+ 8. Driveshaft and back bridge
+ 9. Steering
+ 10. Suspension brackets
+ 11. Brake system
+ 12. Wheels and tires
+ 13. Body
+ 14. Electric equipment


9d8db598

5.8. System of injection of fuel

GENERAL INFORMATION

System of injection of fuel


System of injection of fuel of the ONS engine

 
1 – inlet highway,
2 – connection of a hose of the vacuum amplifier of brakes,
3 – sensor of temperature of cooling liquid,
4 – fuel-supply line,
5 – pressure regulator,
6 – case of a butterfly valve,
7, 12 – laying,
8 – sealing rings,
9 – fuel nozzle,
10 – fuel distributive highway,
11 – potentiometer of provision of a butterfly valve,
13 – regulator of turns of idling

System of injection of fuel of the DOHC engine



1 – inlet highway,

2 – case of a butterfly valve,

3 – regulator of turns of idling,

4 – sensor of temperature of cooling liquid,

5 – pressure regulator,

6 – fuel temperature sensor,

7 – fuel distributive highway,

8 – sealing rings,

9 – fuel nozzle

Relay of system of injection of fuel of V6 2,4 engines and 2,9 dm3

Relays are located under the dashboard from the passenger.

1 – power relay,

2 – relay of the fuel pump

On cars systems of injection of Bosch K-Jetronic or Bosch L-Jetronic fuel can be installed. Control is exercised of the EEC IV module (Electronic Engine Control MK IV – electronic control by the engine) which also operates system of ignition.

Fuel under pressure developed by the fuel pump moves via the accumulator of pressure and the fuel filter. The consumption of air is regulated by a butterfly valve depending on the provision of a pedal of an accelerator. The amount of the air coming to engine cylinders through a flowmeter is the main size operating process of a smeseobrazovaniye.

Fuel nozzles receive electric impulses: one impulse on one turn of a bent shaft. Fuel nozzles of the DOHC engine work in pairs from impulses of the EEC IV module and fuel is injected by couple of nozzles on everyone a half-turn of a bent shaft. Duration of an impulse depends on amount of the injected fuel. Duration of an impulse is calculated by the EEC IV module on the basis of information from various sensors. One fuel nozzle is installed in each cylinder.

The air which is soaked up by the engine passes through the measuring instrument of an air stream. On V6 engines two measuring instruments of a stream of air are installed. The flowmeter plate in the measuring instrument deviates in proportion to stream size: this deviation will be transformed to an electric signal for the EEC IV module. The channel adjusted bypass ensures functioning of the engine idling.

The sensor of provision of a butterfly valve reports to the EECIV module the provision of a butterfly valve and the speed of change of provision of a butterfly valve, thus, at sharp opening of the gate for acceleration of the car additional supply of fuel is provided. For economy of fuel there is a system of shutdown of supply of fuel in the braking mode the engine.

Turns of idling are run by the thermoelectric valve of a jet which regulates amount of the air bypassing a butterfly valve on the additional channel. The zolotnik is run by the EEC IV module. Direct adjustment of turns of idling is not provided.

The sensors located on the engine provide an exact dosage of fuel on all power setting at any surrounding temperatures. On models with the automatic transmission the sensor registers position of the coulisse of a box from P – the parking or N – neutral situation, to D – advance, causing corresponding change of turns of idling. Additional sensors of the DOHC engine report to the EEC IV module the fuels given about temperature, temperature of cooling liquid, speed of the movement of the car (the sensor is located in the transmission).

In the presence of the air conditioner, the signal from the compressor gives the chance of installation of turns of idling irrespective of the loading created by the conditioner compressor.

On models with the DOHC engine without catalyst adjustment of mix of idling is carried out by the potentiometer which is directly connected to the EEC IV block. On models with the DOHC engine with the converter the oxygen sensor of exhaust gases allows the EEC IV module to operate fuel-air mix so that it corresponded to working parameters. Thus, manual fine tuning of mix is impossible.

On models with the DOHC engine with the catalyst the system of catching of evaporation of fuel is installed. The system interferes with an exit of evaporations of gasoline in the atmosphere. When ignition is switched off, couples from the fuel tank get to a coal box. When the engine works, the EEC IV module opens the electromagnetic valve and they come to an inlet collector and mix up with fresh air. It clears the coal filter. The special valve prevents hit of the soaked-up air in the fuel tank.

The "limited mode" (LOS) allowing in case of failure of the module or sensors of system of injection of fuel is provided in the EEC IV module to drive the car, though with loss of power.

From the middle of 1986 all models are supplied with the inertial switch of the fuel pump. The switch breaks off an electric chain of the pump in case of accident or strong blow. The switch is to the left of the trunk lid lock under a plastic cap. Inclusion is made by pressing the button on the top part of the switch.