Audi A4 with 2001- 2005 of release.
1. Operation and car maintenance service
2. The engine
2.1. The general data
2.2. Predvaritlnye checks
2.3. A Mehanichsky part (petrol engines 2,0л)
2.4. Greasing system
2.5. Cooling system
2.6. Injection system
2.6.1. Removal and installation turbocharger
2.6.2. Removal and installation of the vacuum block turbocharger
2.6.3. Adjustment of the vacuum block turbocharger (турбонагнетатель it is removed)
2.6.4. The general instructions on self-diagnostics of system of injection
2.6.5. Decrease in a high pressure of fuel
2.6.6. Removal and installation of a flowmeter of air
2.6.7. Removal and installation of an inlet collector from a fuel stage
2.6.8. Removal and installation of a fuel stage (Rail)
2.6.9. Removal and installation of atomizers
2.6.10. Check of pressure of fuel and residual pressure in front of the high pressure pump
2.6.11. Check of residual pressure
2.6.12. Removal and installation of the pump of a high pressure
2.6.13. Replacement of the block of management of the engine
2.6.14. Removal and ljambda-probe installation in front of the catalyst
2.6.15. Removal and installation a ljambda-probe after the catalyst
2.6.16. A fuel tank (front-wheel cars – all models with engines MPI and 2,0 l FSI)
2.6.17. Откачка fuel from a tank
2.6.18. Removal and installation of a fuel tank from hinged details
2.6.19. Electric check of the fuel pump
2.6.20. Check of quantity of fuel submitted the fuel pump (cars with 4 cylinder engine with a free admission)
2.6.21. Check of quantity of fuel submitted the fuel pump (атомобили with the engine of 1,8 l Turbo)
2.6.22. Check of quantity of fuel submitted the fuel pump (атомобили with 4 cylinder engine FSI)
2.6.23. Check of quantity of fuel submitted the fuel pump (cars with 6 cylinder engine MPI)
2.6.24. Removal and installation of knot of giving of fuel
2.6.25. A fuel tank (all-wheel drive cars till 10.04)
2.6.26. Откачка fuel from a tank
2.6.27. Removal and installation of knot of a pedal of an accelerator from gauges of position of a pedal
2.7. System of release of the fulfilled gases
2.8. A mechanical part (petrol engines 3,0; 3,2)
2.9. A mechanical part (petrol engines 4,2)
2.10. A mechanical part (diesel engines 2,0)
2.11. Tables
3. Transmission
4. A running gear
5. The steering mechanism
6. Brake system
7. An onboard electric equipment
8. A body
9. Electric equipment schemes
 







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2.6.5. Decrease in a high pressure of fuel

Fig. 2.228. A shtekernyj socket of the valve of a regulator of pressure of fuel


Remove штекерный a socket 2 by means of the adjusting tool from the valve of a regulator of pressure of fuel (fig. 2.228).
Leave the engine to idle прибл. During 10 with.

THE NOTE
By means of removal штекерного a socket from the valve of a regulator of pressure of fuel idling pressure of fuel прибл. About 50 bar decreases прибл. To 6 bar.

Fuel pressure drop can be observed, if the diagnostic tester is connected and the block of management of the engine is chosen. Then by means of function «Consider the block of measured sizes» to choose group of indication 140.
In the field of indication 3 pressure of fuel (current value) will be displayed.
Switch off ignition.
After high pressure decrease it is possible to open high pressure system, for this purpose it is necessary to wrap up pure rags a junction to dump residual pressure in the fuel system, making прибл. 7 bar. Collect following fuel.

THE NOTE
If a highway of a high pressure not to disconnect immediately, pressure of fuel can raise a little again.

Connect a diagnostic tester and generate in a mode «Conducted search of malfunctions» a readiness code in the block of management of the engine.


2.6.4. The general instructions on self-diagnostics of system of injection

2.6.6. Removal and installation of a flowmeter of air