Audi 80/90/Coupe

since 1986-1991 release

Repair and operation of the car



Audi 80/90/Coupe
+ 1.2. Identification of the car
- 2. Engines, carburetors
   2.1.2. Removal and installation of the engine (5-cylinder models)
   2.1.3. Dismantling and assembly of engines
   2.1.4. Head of the block of cylinders, gas distribution mechanism
   + 2.2. Engine electric equipment
   - 2.3. Carburetors
      - 2.3.1.2. Check and adjustment of the carburetor
         2.3.1.3. Check of turns of idling
         2.3.1.4. Check and adjustment of maintenance of CO
         2.3.1.5. Bystry check of functioning of the carburetor
         2.3.1.6. Check of the probe Lambda
         2.3.1.7. Check of the sensor of temperature of cooling liquid
         2.3.1.8. Check of an air diaphragm
         2.3.1.9. Check of a potentiometer of a throttle
         2.3.1.10. Preset values of the carburetor 2EE
      + 2.3.2. Keihin carburetors
3. Lubrication system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. System of ignition
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Air conditioning system
+ 14. Electric equipment






2.3.1.6. Check of the probe Lambda

PERFORMANCE ORDER
1) start the engine and within about 1 min. keep rotation speed higher than 2000 rpm. Thanks to it, the probe Lambda will reach normal working temperature
2) connect a probe Lambda wire plug to a nest. Observe functioning of a diaphragm in operating time of the engine idling
3) remove a cap from the vacuum union of the carburetor. The diaphragm has to slowly, be covered a little. If the cover is not closed, it means that the probe Lambda is faulty
4) if the probe Lambda is smoked, it is necessary to make bystry 20-minute driving after which anew to carry out an inspection. It is necessary to find damage of the wire feeding the probe or to replace all probe
5) switch off the engine.
6) connect the vacuum pipeline to the carburetor
7) install the case of the air filter