Audi A4

since 1994 of release

Repair and car operation



A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
- Injection system
   - System of injection of Motronic
      The major knots
      So the system of injection of Motronic functions
      Violations in work and self-diagnostics
      The self-help at injection
      Visual control
      Search of malfunctions in separate knots
      Check of idling and exhaust gases
      Check of exhaust gases (AU)
      Butterfly valve cable
      The help at malfunctions
   + System of injection of MPI and MPFI
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics


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Check of idling and exhaust gases

At system of ignition/injection of Motronic adjusting works are not carried out, as this samoobuchayushchayasya system. It means that the control unit corrects, if it is necessary, number of turns of idling. For turns of idling the following control sizes (check conditions operate: the engine is heated-up, all consumers of the electric power are disconnected, and the moment of ignition is established correctly):

Number of turns of idling: 820–900 rpm.

The contents WITH cannot be measured in exhaust gases in front of the catalytic converter. Therefore recheck is possible only by means of the device for computer reading.