Audi 100/A6

1990-1997 of release

Repair and car operation

Audi 100/A6
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. Engines
+ 3.2. Diesel engines
+ 3.3. Removal and a partition of engines
+ 4. Cooling system
+ 5. Heating and ventilation
- 6. Fuel system
   + 6.1.2. Technical characteristics
   + 6.2. Multidot system of injection of fuel
   - 6.3. System of injection MPI/MPFI (6-cylinder engines)
      6.3.2. Technical characteristics
      6.3.3. Distinctions of systems of injection
      6.3.4. Gauges
      6.3.5. Idling regulation
      6.3.6. Removal and installation клапанных atomizers
      6.3.7. Check клапанных atomizers
      6.3.8. The oxygen gauge
   + 6.4. The power supply system of diesel engines
   6.5. The device of service of heating
   6.6. Diagnostics of malfunctions of system of heating
   6.7. The conditioner: not only "pluses", but also "minuses"
   6.8. Rules of service of the conditioner
+ 7. An exhaust system
+ 8. Systems of start, ignition
+ 9. Transmission
+ 10. Brake system
+ 11. Suspension brackets, a steering
+ 12. A body
+ 13. An electric equipment
+ 14. A good advice


6.3.5. Idling regulation

Valve LFR (Leerlauffullungs-regelung) systems of regulation of filling is attached to an inlet collector and regulates air expense at work in a mode of idling bypassing throttle заслонки. Thanks to it frequency of rotation of the cranked shaft, remaining a constant irrespective of is reached, whether such consumers of energy, as the pump of the amplifier of the steering mechanism or the central air compressor are included. Management of valve LFR is carried out by the electronic block of management of system of injection.

The inlet collector is executed so that soaked up air with the help заслонок goes on long or on a short way. At frequency of rotation of a cranked shaft more low about 4000 rpm заслонки are closed, soaked up air moves on a long way thereof the engine twisting moment raises. At frequency of rotation of a shaft over 4000 rpm заслонки open, soaked up air goes on a short way thanks to what capacity raises. The block of management of system of injection operates movement заслонок by means of the vacuum valve which includes мембранный the mechanism of a drive of a shaft заслонок.

The system recycling the fulfilled gases consists of mechanical and electric valves and serves for reduction of quantity NОx in the fulfilled gases to the catalyst.

The electronic block of management is in the right niche for feet under plastic facing.
The prevention

At works with injection systems it is necessary to pay attention to faultless cleanliness. Before демонтажем it is necessary to clear corresponding details gasoline. The system is under a high pressure. Therefore before replacement of details for pressure decline in system it is necessary to turn on slowly топливопровод between the fuel pump and the filter. Preliminary to enclose under топливопровод a rag.

The high pressure decreases itself (without отворачивания топливопровода) in some hours after an engine stop.