Audi 100

1982-1990 of release

Repair and operation of the car



Audi 100
+ 1.1. Governing bodies and devices
+ 2. Technical characteristics
+ 3. Engines
+ 4. Cooling system
+ 5. Exhaust system
+ 6. Power supply system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
- 12. Electric equipment
   + 12.1. System of electric equipment
   - 12.2. System of ignition
      + 12.2.1. Transistor system of ignition
      - 12.2.2. Electronic system of ignition
         12.2.2.1. Check of the coil of ignition
         12.2.2.2. Check of the sensor of a corner of an advancing of ignition
         12.2.2.3. Check of the sensor of frequency of rotation of a cranked shaft
         12.2.2.4. Sensor of a corner of an advancing of ignition, frequency of rotation of a cranked shaft
         12.2.2.5. Check and replacement of the sensor of air temperature
         12.2.2.6. Check of the sensor of temperature of cooling liquid
         12.2.2.7. Switches of the mode of idling and opening of a butterfly valve
         12.2.2.8. Check of the sensor of the Hall
         12.2.2.9. Check of the control unit
      12.2.3. Contactless system of ignition of FEI
   + 12.3. Electric circuits


12.2.2.5. Check and replacement of the sensor of air temperature
GENERAL INFORMATION

Numbers of contacts of the sensor of air temperature

 1 and 2 – contacts of the sensor;

3 – air temperature sensor;

4 – protective cover

Numbers of contacts of a connecting block of the control unit

PERFORMANCE ORDER
1. To shift a protective cover.
2. To measure by an ohmmeter resistance between contacts "1" and "2" sensors. It has to be 400–700 Ohms.
3. If resistance differs from specified, it is necessary to measure conducting resistance between contact "3" and contacts "1" and "2" in turn. Resistance has to be equal to respectively zero and 400–700 Ohms.
4. Then to measure resistance between contact "24" and contacts "1" and "2" in turn. Resistance has to be also equal to respectively zero and 400–700 Ohms. If resistance differs from specified, there is a break in conducting.
5. To unsolder wires from the sensor and again to measure resistance between its contacts "1" and "2". It has to be 400–700 Ohms. If resistance differs from specified, to replace the sensor.
6. To turn off two bolts and to remove the sensor.
7. To install the new sensor, to wrap bolts.
8. To solder wires to contacts of the sensor.