VOLKSWAGEN GOLF IV

since 1997 of release

Repair and car operation



Foltsvagen Golf 4
+ 1. Maintenance instruction
+ 2. Engine
+ 3. Cooling system
- 4. Fuel system
   - 4.1. Cars with petrol engines
      4.1.1. Removal and installation of the fuel pump / fuel level sensor
      4.1.2. Removal and installation of the fuel filter (petrol engines)
      4.1.3. Adjustment of a cable of an accelerator
      4.1.4. Removal and installation of the case of the air filter
      4.1.5. Remote check of elements of fuel system
      + 4.1.6. Check of the fuel pump
      4.1.7. Check of the relay of the fuel pump
      - 4.1.8. Control system of the engine
         4.1.8.1. Specifications
         4.1.8.2. Work of a control system as the engine
         4.1.8.3. Check of system of injection of fuel
         4.1.8.4. Sensors and executive mechanisms of a control system of the engine
         4.1.8.5. Fuel
         + 4.1.8.6. Ignition system
         4.1.8.7. Removal and installation of the fuel highway and nozzles
         4.1.8.8. Main malfunctions of a control system of the engine
   + 4.2. Cars with diesel engines
+ 5. Exhaust system
+ 6. Ventilation and heating system
+ 7. Coupling
+ 8. Transmission
+ 9. Suspension brackets and power shafts
+ 10. Steering
+ 11. Wheels and tires
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment and electroschemes




4.1.8.3. Check of system of injection of fuel

GENERAL INFORMATION

In system of injection of fuel it is independently possible to check only the main electric chains.

PERFORMANCE ORDER
1. If normal operation of the engine is broken, first of all check a condition of electric conducting and sockets. Check a condition of a filtering element of the air filter, and also a condition and an interelectrode gap of spark plugs. Check passableness of hoses of ventilation of a case of the engine and adjustment of a cable of an accelerator. If the engine still works unstably, check a compression in engine cylinders.
2. If there is a suspicion for bad work of a fuel nozzle, clean it.
3. If the engine still works unstably, check elements of system of ignition.
4. If malfunction is not eliminated yet, check integrity of fuses and a condition of electric sockets and electroconducting. On electric sockets there should not be melted-off contacts, moisture, traces of corrosion, dirt and other damages.
5. After carrying out independent check address on the specialized Volkswagen station for diagnostics of system of injection of fuel on the special equipment.