Audi 80/90/Coupe

since 1986-1991 of release

Repair and car operation

Audi 80/90/Coupe
+ 1.2. Car identification
- 2. Engines, carburetors
   2.1.2. Removal and engine installation (5-cylinder models)
   2.1.3. Dismantling and assembly of engines
   2.1.4. Head of the block of cylinders, gazoraspredeleniye mechanism
   + 2.2. Engine electric equipment
   - 2.3. Carburetors
      - Check and carburetor adjustment Check of turns of idling Check and adjustment of the maintenance of CO Fast check of functioning of the carburetor Probe check Lambda Check of the sensor of temperature of cooling liquid Check of an air diaphragm Check of a potentiometer of a throttle 2EE carburetor preset values
      + 2.3.2. Keihin carburetors
3. Greasing system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Ignition system
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Central air
+ 14. Electric equipment

dfe5d7b3 Check of a potentiometer of a throttle


The potentiometer of a throttle displays each time the provision of a throttle and its change. During acceleration, the equipment of management receives information on how quickly and on what corner the butterfly valve is inclined. The closed throttle informs the management equipment on engine further work idling.

Measurement of resistance of a potentiometer of a throttle

1) take a plug with the wires feeding a potentiometer
2) measure all resistance of a potentiometer between the terminations 1 and 3. The normal amount should equal: 1.4–1.6 kiloohm
3) start the engine and leave it to idle
4) remove the pipeline of removal of air between a regulator of provision of a throttle and the filter of system of airing. From the filter establish a cap. For this purpose it is possible to use bolts of the corresponding diameter
5) muffle the engine. The butterfly valve should close a mouth completely
6) measure resistance between the terminations 1 and 2 potentiometers and at the same time reject a butterfly valve before situation "full gas". Resistance should decrease smoothly to initial size of 1.4-2.4 kiloohms at the "closed" butterfly valve to size less than 270 Ohm in situation of "complete opening" butterfly valve
7) take out a cap from the pipeline of removal of air and put on the pipeline the union at the air filter
8) connect a plug to a potentiometer