Audi 80/90/Coupe

since 1986-1991 of release

Repair and car operation



Audi 80/90/Coupe
+ 1.2. Car identification
+ 2. Engines, carburetors
3. Greasing system
+ 4. Cooling system
- 5. Fuel system
   - 5.2. Systems of injection of fuel
      5.2.1.2. Specifications (4-cylinder models)
      5.2.1.3. Components of system of injection for 5-cylinder models
      5.2.1.4. Specifications (5-cylinder models)
      5.2.1.5. Starting position of a plate of the sensor of an air stream
      5.2.1.6. Free wheeling of a plate of the sensor of an air stream
      5.2.1.7. Lever of a plate of the sensor of an air stream
      5.2.1.8. An operating plunzher
      5.2.1.9. Throttle valve
      5.2.1.10. Rope of management of a butterfly valve
   5.2.2. Fuel injectors (20-klapanny models)
   + 5.2.3. Electronic control system of the MPI engine
+ 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







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5.2.1.2. Specifications (4-cylinder models)

GENERAL INFORMATION

Engine code
Installation of a corner of an advancing of ignition
verifying value
4 °–8 ° before the top dead point
adjusting value
6 ± 1 ° before the top dead point
Number of turns of idling (the number of turns is not regulated, конторолируется by system of stabilization of idling)
 780-900 ob./minute.
The contents WITH:
verifying value (in a tube for measurement WITH)
0,2-1,2 about. %
adjusting value (adjustment is carried out by means of the current control of a regulator of pressure difference)
0–5 (floating value)
CIS-E Motronic control unit number
893 907 404
Number limit ob./minute.
6300-6500
Delay of supply of fuel by means of change of a napravlyaeniye of an operating current in a pressure difference regulator
Throttle switch
switching points:
The switch I – the switch of a mode of a holotsy course
0.15-0.5 mm between a point of operation of the switch and a stop of the lever of a throttle
The switch II – the switch of a mode of completely open butterfly valve
10 ° ± 2 ° to a full stop


Pressure in system

 6.1-6.5 bar (manometrical pressure)

Pressure difference:
 1–the electrosocket is disconnected from a pressure difference regulator about 0.3 – 0.5 bar is lower than pressure in system
 2–the electrosocket is connected to a pressure difference regulator (include a starter approximately for 3 seconds) about 1.3 – 1.6 bar is lower than pressure in system
Residual pressure:

after at least 10 minutes

3.3 bar (manometrical pressure)
after at least 20 minutes 3.2 bar (manometrical pressure)
Fuel injectors:
working pressure  3.7-4.8 bar (manometrical pressure)

tolerance of amount of injected fuel in a set of injectors:

measurement in an idling mode (a tool 1348/1 position 1) at amount of injected fuel of 20 ml at most 2.0 ml
measurement in a mode of completely open butterfly valve (a tool 1358/1 position 2) at amount of injected fuel of 80 ml at most 8.0 ml
Resistance of a regulator of pressure difference  15-20 Ohm
Example 1: 2500 Ohm at 20 ° With  

Example 2: 200 Ohm at 100 ° With

 
Resistance of the valve of start from a cold condition about 10 Ohm

Resistance of the temperature sensor between plugs