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Audi 80/Avant (B4)



Audi 80/Avant
The description
Engines
System of release of the fulfilled gases
Cooling system
Fuel tank and the fuel pump
The air filter and intake channels
- Injection system
    System of injection Mono-Motronic
   - System of injection Digifant
      Operating procedure
      Malfunctions and independent diagnostics
      Independent repair
      Visual check
      Check of separate elements
      Removal впрыскных atomizers
      Check of a mode of idling and the analysis of exhaust gases
      The list of malfunctions
    System of injection KE-III-Jetronic
    Systems of injection MPI and MPFI
Coupling
Transmission and transmission
Suspension bracket and steering
Brake system
Antiblocking system of brakes
Wheels and tyres
body electrosystem
Ignition system
Illumination
Signalling devices
Devices and auxiliary devices
Heating and ventilation
Body elements
Search of malfunctions
Specifications












Check of a mode of idling and the analysis of exhaust gases

On an illustration the tip of the valve of stabilisation of idling (marksman) is removed to check up the valve and conducting to it.

Arrangement of a drive of gas at the engine capacity of 85 kw; figures designate: 1 and 4 – хомутики; 2 – тросовый an accelerator drive; 3 – tip protection; 5 – a lock segment of a cover тросового an accelerator drive.

At system of injection Digifant adjusting works are not required, because this system is self-trained. It means that the management block if necessary corrects frequency of rotation in an idling mode. Only in doubtful cases so-called basic adjustment is made. It occurs not by means of inhalings of adjusting bolts, and by means of already mentioned device for reading of the store V. A. G 1551 after memory of the store at first has been interrogated. Standard indicators of frequency of rotation or the maintenance WITH in an idling mode (check conditions: working temperature of the engine, switching-off of all consumers of the electric power and correct installation of the moment of ignition) it:

  • Frequency of rotation in an idling mode: 850 50 rpm.
  • The test for the maintenance WITH in the fulfilled gases: 0,6—1,0 % (gauging in a measuring tube WITH).

If you have received other indicators it is necessary to check up vacuum hoses and the electromagnetic valve of system of evaporation of fuel, to interrogate memory of the store of malfunctions.

 The help: everything that you should know about the analysis of exhaust gases, action check catalytic neutralizer, check of a ljambda-probe and тросовом an accelerator drive, you will find in the previous chapter System of injection Mono-Motronic.

Routine check catalytic neutralizer and a ljambda-probe is spent in a workshop as it is written in section Check catalytic neutralizer and a ljambda-probe for system of injection Mono-Motronic.