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 and adjustment of the maintenance of CO


The contents WITH in exhaust gases is shown the special measuring instrument of tension connected to a control plug, placed in the engine chamber. Certain light impulses of diodes of a measuring instrument testify to a certain contents WITH. It is not necessary to use any other testing lamp as the big gap of a current can cause failure of electronic systems.

1) include a tension measuring instrument between a control plug 1 (a separate plug on the end of a blue cable) and a positive clip of the accumulator
2) start the engine and within about 1 minute at speed of rotation more than 2000 rpm warm up it that the probe the Lambda reached normal working temperature
3) it is necessary to observe being shone diodes of a measuring instrument. At the speed of rotation corresponding to turns of idling of the engine, diodes should flicker with frequency of 1.5 times a second. It means that the contents WITH is admissible a probe the Lambda
4) make exact measurement of the contents WITH by means of the analyzer of exhaust gases. If, despite the correct indicators of a diode tester, the SO valid size measured by means of the analyzer of exhaust gases is behind admissible norm, it is necessary to check a probe the Lambda
5) if the diode of a tester is shone constantly, it means that a fuel and air mix of idling very "rich". If the diode of a diode tester is not shone, it means that a fuel and air mix very "poor"
6) blinking of being shone diodes with frequency 25 in second means that the probe the Lambda is damaged or damaged a connecting wire of a probe


The probe the Lambda can be smoked that will be at the bottom of faulty work. 20-minute fast driving in the country will clean a possible zakopchennost then it is necessary to make check anew.

7) take out a plug of a wire of a probe the Lambda from a nest 1. The nest follows заизолировать an insulating tape
8) it is necessary to observe indications of a diode tester. Being shone diodes should flicker
9) remove a safety overlay of an adjusting bolt And the contents WITH in exhaust gases. It is necessary to "make a hole" in a plastic cap, and then to screw a screw in a cap and all this to take out together
10) rotating a small screw-driver an adjusting bolt And to the left and to the right, to establish the demanded contents WITH in exhaust gases. During adjustment the fan of system of cooling should not work
11) the adjusting bolt before rotation is necessary for protecting, having pressed a new plastic cap
12) disconnect a measuring instrument WITH from a measuring tube in the forward exhaust silencer, and a measuring tube close
13) disconnect a diode tester
14) remove an insulating tape and anew connect a plug of a wire of a probe the Lambda to a nest
15) connect the pipeline of removal of air to an udalitel of air of the main oil case