Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation

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 воздухозаборные channels
- Injection system
   - System of injection Mono-Motronic
      Operating procedure
      Malfunctions and independent diagnostics
      Independent repair
      Visual check
      Check of separate elements
      Check of a mode of idling and the analysis of exhaust gases
      Check каталитического neutralizer and a ljambda-probe
      Trosovyj drive of "gas"
      The list of malfunctions
   + System of injection Digifant
   + 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
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications


The list of malfunctions

System of injection Mono-Motronic

If you do not have possibility to consider memory of the store of malfunctions the device in workshop Audi, you can try to find malfunction by means of our table of malfunctions.

Its reason
A.Holodnyj the engine is not got absolutely or very badly 1. A faulty safety lock 13, 21, 25, 27 or 28
2. Faulty conducting of the additional resistor впрыскной atomizers
3. The fuel pump does not deliver fuel absolutely or very badly
4. A faulty regulator of pressure of fuel
5. The faulty gauge of temperature of cooling means
6. A faulty potentiometer throttle заслонки
7. The faulty block of management
8. A faulty plait of wires between the gauge of the Hall and the management block
9. In the engine not considered air arrives
To replace

To check up, if necessary to replace

Whether there is in general a gasoline in a fuel tank?
To check up the pump, to measure quantity of delivered fuel
To measure pressure (in a workshop)

To check up in a workshop

To check up in a workshop
To check up cable passage
To check up according to the instruction about visual check

V.Progretyj the engine is not got absolutely or got badly 1. See And 2 – 9
2. Негерметична впрыскная an atomizer
To check up an atomizer
S.Dvigatel is got, but again глохнет 1. The regulator of position throttle заслонки does not work
2. See А6
3. A defective ljambda-probe
To check up a regulator

To check up functioning, if necessary to replace

D. The cold engine shivers in an idling mode 1. See And 5
2. See With 1
E.Teplyj the engine shivers in an idling mode See С1  
F. Idling turns decrease at inclusion of strong consumers of power supplies or at full turn of the amplifier of the steering mechanism See С1  
G. The engine works with faults 1. The fuel filter is hammered
2. See А3
3. See В2
4. See С3
To replace the filter
Н. Fluctuating frequency of rotation at 2000-3000 rpm See А6  
I. The Engine works with faults, глохнет Cм. А3  
J. Insufficient capacity of the engine 1. See А3, 6 and 9
2. See С3
4. Throttle заслонка does not rise in position of full gas
K.Obratnye of flash in an inlet collector 1. See А4
2. See С3
L. Too high expense of fuel 1. See А5 and 6
2. See С3

 The help: at accumulator switching-off adjustment indicators of system of injection Mono-Motronic are erased. It leads to that after restoration of a food the engine during some time in an idling mode works not faultlessly. Fastest process of self-restoration of adjustment indicators occurs during a trip in about 10 minutes