Audi 80/Avant (B4)

Audi 80/Avant
The description
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
    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
Transmission and transmission
Suspension bracket and steering
Brake system
Antiblocking system of brakes
Wheels and tyres
body electrosystem
Ignition system
Signalling devices
Devices and auxiliary devices
Heating and ventilation
Body elements
Search of malfunctions

Independent repair

Unfortunately, numerous checks of system of injection in house conditions cannot be spent in the absence of necessary instrumentations. However the certain sphere of action nevertheless remains.

Operating procedure

The management block cannot be checked up house means. Practice shows, however, that in any case of a malfunction from this party trap extremely seldom. Bring gauges, switches and connections of wires is much more often. Therefore in the presence of a malfunction it is necessary to operate as follows:


  1. Check up all safety locks concerning system of injection (№ 13, 21, 27, 28 and 32). An order?
  2. Establish, whether the ignition system is perfectly in order.
  3. Check up fuel giving.
  4. Spend visual check of elements of system of injection.
  5. If thus malfunction has not been found, see the list of malfunctions in the end of the head, establish a possible source of malfunctions, check up a suspicious detail under the control scheme.
  6. If also it has not helped, interrogate in a workshop memory of the store of malfunctions within the limits of carrying out of diagnostics of the car. However, it will help only in case preliminary there was no switching-off of the storage battery as thus there is a full deleting of memory of the store of malfunctions.