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
   + System of injection Digifant
   + System of injection KE-III-Jetronic
   - Systems of injection MPI and MPFI
      Operating procedure
      Malfunctions and independent diagnostics
      Independent repair
      Visual check
      Check of separate elements
      Removal of elements
      Trosovyj drive of "gas"
      Check of a mode of idling and the analysis of exhaust gases
      The list of malfunctions
+ 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

Systems of injection MPI/MPFI

Its reason
Than to help
A.Holodnyj the engine is not got absolutely or very badly 1. A faulty safety lock 13, 21, 27, 28 or 32
2. The faulty relay of the fuel pump
3. The fuel pump does not submit fuel absolutely or very badly
4. A faulty regulator of pressure of fuel
5. The faulty valve of idling
6. The faulty block of management
7. There is no signal of frequency of rotation from the gauge of frequency of rotation
8. 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 submitted fuel (the Head the Fuel tank and the fuel pump)
In a workshop to measure pressure
To check up
To check up in a workshop
To check up cable passage
To check up all pipelines
V.Progretyj the engine is not got absolutely or got badly 1. The vacuum pipeline conducting to a regulator of pressure of giving of fuel is faulty
2. See And 1 – 4, 6 and 7
3. Негерметичны впрыскные atomizers
4. The faulty gauge of temperature охлаждаюшей liquids
To check up the pipeline
To check up atomizers
To check up the gauge
S.Dvigatel is got, but again глохнет 1. See And 1 and 5
2. See В1
3. The indicator WITH differs from the standard
4. A faulty flowmeter of air (MPI) or the gauge of temperature of inlet air or the pressure gauge in a final collector (MPFI)
5. A faulty potentiometer throttle заслонки
To check up injection system
To check up
To check up
D. The cold engine shivers in an idling mode 1. See And 5  
E.Progretyj the engine shivers in an idling mode 1. See And 4 and 5
2. See С3
F. Too high turns of idling See And 5  
G. The engine works with faults 1. The fuel filter is hammered
2. See А3 and 5
3. See В34 See С3 and 4
To replace the filter
N.Dvigatel works with faults, глохнет The fuel pump works non-uniformly To check up productivity of the fuel pump
I. Insufficient capacity of the engine 1. See А3, 4 and 8
2. See С3 and 5
3. Throttle заслонки do not rise in position of full "gas"
To adjust тросовый "a gas" drive
J. Return flashes in a final collector 1. See А4
2. See С3
K.Slishkom the high expense of fuel 1. See В4
2. See С3