Removal and installation of a fuel stage (Rail). Audi A4 (from 2001 to 2005 release)
Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
2.1. General information
2.2. Predvaritlny checks
2.3. Mekhanichsky part (petrol engines 2,0l)
2.4. Lubrication system
2.5. Cooling system
2.6. System of injection
2.6.1. Removal and installation of a turbocharger
2.6.2. Removal and installation of the vacuum block of a turbocharger
2.6.3. Adjustment of the vacuum block of a turbocharger (the turbocharger is removed)
2.6.4. The general instructions on self-diagnostics of system of injection
2.6.5. Decrease in 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 with a fuel stage
2.6.8. Removal and installation of a fuel stage (Rail)
2.6.9. Removal and installation of nozzles
2.6.10. Check of pressure of fuel and residual pressure in front of the pump of high pressure
2.6.11. Check of residual pressure
2.6.12. Removal and installation of the pump of high pressure
2.6.13. Replacement of the control unit of the engine
2.6.14. Removal and installation a lambda probe in front of the catalyst
2.6.15. Removal and installation a lambda probe after the catalyst
2.6.16. The fuel tank (front-wheel cars – all models with MPI engines and 2,0 l of FSI)
2.6.17. Pumping of fuel from a tank
2.6.18. Removal and installation of the fuel tank with hinged details
2.6.19. Electric check of the fuel pump
2.6.20. Check of amount of the fuel given by the fuel pump (cars from the 4th the cylinder engine with a free admission)
2.6.21. Check of amount of the fuel given by the fuel pump (atomobil with the engine of 1,8 l Turbo)
2.6.22. Check of amount of the fuel given by the fuel pump (atomobil from the 4th the cylinder FSI engine)
2.6.23. Check of amount of the fuel given by the fuel pump (cars from 6 the cylinder MPI engine)
2.6.24. Removal and installation of knot of supply of fuel
2.6.25. Fuel tank (all-wheel drive cars till 10:04)
2.6.26. Pumping of fuel from a tank
2.6.27. Removal and installation of knot of a pedal of an accelerator with sensors of provision of a pedal
2.7. System of production of the fulfilled gases
2.8. Mechanical part (petrol engines 3,0; 3,2 l)
2.9. Mechanical part (petrol engines of 4,2 l)
2.10. Mechanical part (diesel engines of 2,0 l)
2.11. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 







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2.6.8. Removal and installation of a fuel stage (Rail)

After replacement of a fuel stage it is necessary to adjust a potentiometer of the gate of an inlet collector on the engine control unit again.

NOTE
The inlet collector has to be removed.

Remove all hoses of an absorber with absorbent carbon.
Open a hose collar 1.
Unscrew both screws from a fuel stage.

Fig. 2.236. Hose connection


Disconnect hose connection 1 from an inlet collector and unscrew both screws (fig. 2.236).
Turn off both fuel-supply lines 2 and 3.

Fig. 2.237. Connections of a fuel-supply line, gate of an inlet collector and engine


Carefully lift draft of the engine of the gate of an inlet collector of 4 (fig. 2.237).
Unscrew the engine of the gate of an inlet collector of 5 (fig. 2.237).
Lift a toplivoraspredelitelny tube over the fixing ledges of an inlet collector.
Remove the fuel distributor from an inlet collector.

Installation
Installation is carried out in the return sequence.
Establish an inlet collector.


2.6.7. Removal and installation of an inlet collector with a fuel stage

2.6.9. Removal and installation of nozzles