Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

Audi 80/Avant
+ Technical specification
+ Engines
+ System of production of the fulfilled gases
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
- System of injection
   + System of injection of Mono-Motronic
   - System of injection of Digifant
      Operating procedure
      Malfunctions and independent diagnostics
      Independent repair
      Visual check
      Check of separate elements
      Removal of vpryskny nozzles
      Check of the mode of idling and analysis of exhaust gases
      List of malfunctions
   + System of injection of KE-III-Jetronic
   + Systems of injection of MPI and MPFI
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrical system
+ System of ignition
+ Lighting
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications

Malfunctions and independent diagnostics

The control unit of system of injection of Digifant can distinguish and write down part of malfunctions which arise during operation of the engine in memory. The recognizable malfunctions register in memory of the store of malfunctions. When the Audi car gets for check to a workshop, data of the store of malfunctions are read out by means of the special device. Possibility of data read-out of the store of malfunctions is not provided in house conditions. If you assume failure in management of ignition/injection, it is possible to interrogate memory of the store of malfunctions only in Audi workshop. In addition you can use our list of malfunctions in which we provided a large number of the possible failures which are beyond independent diagnostics. After elimination of malfunctions memory of the store of malfunctions is erased by the reading device.

 Help: when carrying out all checks and adjustments at which at system of injection of Digifant the sensor of temperature of cooling liquid was disconnected, this circumstance is noted in memory of the store of malfunctions as "lack of a signal of the temperature sensor". Therefore after each check or adjustment it is necessary to erase memory of the store of malfunctions that the workshop by means of the device for reading of memory of the store of malfunctions of V. A. G 1551 does.