Audi 80/90/Coupe

Since 1986-1991 of release

Repair and car operation



Audi 80/90/Coupe
+ 1.2. Car identification
+ 2. Engines, carburettors
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. A starting position of a plate of the gauge of an air stream
      5.2.1.6. A free wheeling of a plate of the gauge of an air stream
      5.2.1.7. The lever of a plate of the gauge of an air stream
      5.2.1.8. Operating плунжер
      5.2.1.9. The throttle valve
      5.2.1.10. A rope of management throttle заслонкой
   5.2.2. Fuel injectors (20-klapannye models)
   + 5.2.3. An electronic control system of engine MPI
+ 6. An exhaust system
+ 7. Ignition system
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. A steering
+ 12. A body, salon
+ 13. A central air
+ 14. An electric equipment





5.2. Systems of injection of fuel

5.2.1. The combined system топливоснабжения and ignitions CIS-E Motronic

5.2.1.1. Components of system of injection for 4-cylinder models
THE GENERAL DATA

CIS = Continuous Injection System = system of continuous injection

Components of system of injection (4-cylinder models)
1. The switch of a mode of idling
2. The valve of start from a cold condition
3. A pressure regulator
4. The fuel distributor
5. A socket for car self-diagnostics
6. A regulator of pressure of fuel
7. A potentiometer
8. A tube for measurement WITH
9. Valves of injection of fuel
10. Spark plugs
11. The gauge of detonation combustion of fuel
12. The temperature gauge
13. The coal filter
14. A sealing cap on the coal filter
15. The frequency valve for the coal filter – the valve I
16. The panel of fuses
17. An electrosocket of the oxygen gauge
18. The ignition distributor (with the Hall gauge)
19. An electrosocket of the gauge of detonation combustion of fuel
20. Electromagnetic запорный the valve for the coal filter – the valve II
21. The ignition coil
22. The target cascade
23. The valve of stabilisation of idling
24. The mode switch completely open throttle заслонки
25. The block of management CIS-E Motronic
Between the right top instrument panel and the ventilating channel (car salon)

Components of system of injection (4-cylinder models)
1. A cover of soaked up air
2. The throttle case
3. To an inlet collector
4. The mode switch completely open throttle заслонки
5. The switch of a mode of idling
6. To a head of cylinders
7. Trojnikovoe connection
8. An inlet collector
9. A lining
10. To the hydraulic booster of brake system
11. To a ventilating hose картера
12. A bulb of the indicator of malfunctions (in an insert of the instrument panel)
13. An electrosocket for the oxygen gauge
14. An electrosocket for a heater of the oxygen gauge
15. The oxygen gauge (thermal type),
50 Н.м.
Arrangement: каталитический the converter
16. An electrosocket of the block of management
Disconnect or connect an electrosocket only at the switched off ignition
17. The block of management CIS-E Motronic (the alarm block)
Removal: remove furnish ahead of "glove compartment"
Press fixing шпонку into the instrument panel and remove the management block from below
18. To the solenoid of the coal filter
19. An electrosocket of the stabilizer of idling
20. The rubber block of fastening
21. The valve of stabilisation of idling

Components of system of injection (4-cylinder models)

1. Submitting топливопровод (from the fuel filter)
2. Return топливопровод (to the fuel tank)
3. The fuel distributor
After installation of the distributor of fuel check up a free wheeling of a plate of the gauge of an air stream, if necessary adjust
4. 3.5 Н.м., after an inhaling fix a paint
5. A stopper with шестигранной a head, 10 Н.м.
Connection for pressure check
6. 20 Н.м.
7. A ventilating hose (to the top part
The air filter)
8. A regulator of pressure of fuel
9. 10 Н.м.
10. 3.5 Н.м.
11. Operating плунжер
12. A sealing ring
Smaller diameter – to the managing director плунжеру, герметизирует only in a starting position of a plate of the gauge of an air stream
13. The lock screw of operating плунжера
14. Ring consolidation, replace
15. 20 Н.м., at replacement establish a bolt "банджо" instead of the minifilter
16. A pressure difference regulator
17. The antimagnetic screw
18. An electrosocket of a regulator of pressure difference
19. An electrosocket of the gauge of temperature of a cooling liquid
20. The gauge of temperature of a cooling liquid
21. A ledge for hose connection
22. 20 Н.м.
23. To valves of injection of fuel
24. To the valve of start from a cold condition
25. 10 Н.м.

Components of system of injection (4-cylinder models)

1. A cover of soaked up air
2. The gauge of an air stream
3. A potentiometer
4. A casing of the air filter (the top part)
5. A filtering element of the air filter
6. A connecting flange
7. Приточный the air valve, from the managing director заслонкой and the thermostat
The managing director заслонка closes:
Above +10 With: inflow of warm air
More low 0 With: inflow of cold air
8. A hose (to an exhaust cranked branch pipe)
9. A casing of the air filter (the bottom part)
10. A lining
11. Заглушка, удадите before adjustment of the maintenance WITH
12. The mesh filter
Installation position: curvature to a cover
13. 10 Н.м.
14. An arm for fuel injectors
15. To the fuel distributor
16. The inzhektornyj valve
17. A lock ring
18. М6 = 10 Н.м.
М8 = 25 Н.м.
19. An inlet collector
20. The temperature gauge (for the cooling fan инжекторных valves / топливопроводов)
21. An insert of a fuel injector
22. A lining of an inlet collector
23. Ring consolidation, cover with greasing before installation
24. 20 Н.м.
25. The valve of start from a cold condition
26. An electrosocket of the valve of start from a cold condition


The prevention

Inflammably! Do not smoke and do not bring to area of repair anything from this that can ignite fuel.

Replace linings and ring consolidations.

Fix connections of hoses by screw or spring clips.

For correct work of components of electric system pressure a minimum of 11.5 volt is necessary.

Be attentive at work with the engine. The high voltage can injure you and damage electric components.


Switch off ignition:

 – At connection or a detachment of testers to ignition system;
 – At connection or a detachment of wires of ignition;
 – At an engine sink.

Do not forget about the accumulator:

 – Do not disconnect the accumulator at the working engine;
 – At emergency start use подзарядное the device no more than 15 seconds and pressure no more than 16.5 volt;
 – Disconnect the accumulator and the block of management CIS-Motronic at use of the equipment of arc, dot or electric welding.

At system testing:

 – Do not submit pressure on the block of management for modelling of target signals;
 – At a detachment of a wire of the coil (the plug 4) from the distributor always earth by means of a wire piece;
 – At the disconnected and not earthed wire of a high voltage do not turn the engine.

At heat use:

 – If components were нагреты above 80 With a dryer for a paint or пароочистителем, wait while they will cool down before engine start.

At towage:

 – In cars with faulty ignition (or with possible malfunctions of ignition) it is necessary to disconnect the target cascade of the coil of ignition.

Rules of observance of cleanliness

First of all clear points of connections before separation.

 At open fuel system:

 – Do not use compressed air needlessly;
 – Move the car only at a severe need;
 – If you have not finished repair, accurately cover details with a film or a paper, but not rags.

Use only pure details:

 – Do not develop new components ahead of time;
 – Use only the packed new details;
 – Put the removed details on a pure surface, cover with a plastic foil or a paper, but not rags.