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
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
- Ignition system
   Various systems of ignition
   Principle of work of ignition
   Executive office
   System "brain"
   Impulses for the management block
   Regulation on a detonation
   Security measures at work with ignition system
   Repair of system of ignition
   Diagnostics of system of ignition
   The ignition distributor
   The gauge of detonation combustion
   High voltage elements
   Replacement of spark plugs
   Spark plugs
   Check of the moment of ignition
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications


Executive office

The electronic transistor switchboard

In the electronic switchboard there is a powerful transistor which switches on and off current giving to the ignition coil (or to ignition coils). Thus, huge pressure cannot prevent work of sensitive electronics of the block of management. However the transistor submits a current not to that moment, in which gauge of the Hall (with 4 and 5-cylinder engines) or the gauge of the moment of ignition (models with 6-cylinder engines) deliver to model the impulses. The management block independently defines an ignition certain moment, giving that an inclusion/deenergizing impulse.