Opel Astra A

1991-1998 of release

Repair and operation of the car

Opel Astra A
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Ventilation and heating
- 5. Power supply system
   + 5.1. Carburetor engines
   - 5.2. Models with fuel injection
      5.2.1. Technical characteristics
      5.2.2. Precautionary measures
      5.2.3. Elements of system of injection of fuel
      5.2.4. Unleaded gasoline
      5.2.5. Electronic control unit
      5.2.6. Casing of the air filter
      5.2.7. Air filter
      5.2.8. Resonator, air filter
      5.2.9. Fuel injection block (Multec of TsVT)
      5.2.10. Case of a butterfly valve (Multec of MW)
      5.2.11. Case of a butterfly valve (Multec-S)
      5.2.12. Case of a butterfly valve (Motronic M 1.5)
      5.2.13. Case of a butterfly valve (Motronic M 2.5 and M 2.8)
      5.2.14. Case of a butterfly valve (Simtec)
      5.2.15. Fuel injector of Multec of TsVT
      5.2.16. Fuel injectors of Multec of MW
      5.2.17. Fuel injectors (Motronic M 1.5)
      5.2.18. Fuel injectors (Motronic M 2.5 and M 2.8)
      5.2.19. Fuel injectors (Simtec)
      5.2.20. Fuel pressure regulator
      5.2.21. Sensor of provision of a butterfly valve
      5.2.22. Potentiometer of a butterfly valve
      5.2.23. Solenoid of system of idling
      5.2.24. Electromagnetic valve of system of idling
      5.2.25. The solenoid regulating air supply in system of idling
      5.2.26. Pressure sensor in an inlet collector
      5.2.27. Sensor of speed of rotation and provision of a bent shaft
      5.2.28. Sensor of temperature of cooling liquid
      5.2.29. Oxygen sensor
      5.2.30. The sensor of temperature of the arriving air
      5.2.31. Air stream sensor
      5.2.32. Sensor of detonation combustion of fuel
      5.2.33. Sensor of position of the camshaft
      5.2.34. Blowing-off valve of the coal filter
      5.2.35. Fuel pump
      5.2.36. Fuel filter
      5.2.37. Accelerator rope
+ 6. System of decrease in toxicity
+ 7. Coupling
+ 8. Transmissions
+ 9. Half shafts
+ 10. Brake system
+ 11. Suspension bracket and steering
+ 12. Body
+ 13. Electric equipment
+ 14. Electrical circuitries


5.2.16. Fuel injectors of Multec of MW and Multec-S


Removal and installation

1. Release pressure from a power supply system, having removed the relay of the fuel pump and turning cranked engine kcal a starter within at least 5 seconds.
2. Disconnect a wire of the minus plug of the accumulator.
3. Unscrew pressure regulator from a fuel supply tube to release the remained pressure in system.
4. Disconnect sockets of connection of injectors, then remove wires from a fuel collector.
5. Disconnect a vacuum tube from pressure regulator.
6. Turn off two fixing bolts of a fuel collector (are specified by shooters a photo at the left), then lift a fuel collector so that it was possible to remove injectors (on a photo on the right – a detachment of the socket of connection of a fuel injector).
7. Remove a fixing clip (a photo at the left) a fuel injector, then remove it from a fuel collector (a photo on the right shooters specified sealing rings).
8. Injectors are not subject to repair and if they are faulty, they need to be replaced.
9. The fuel collector can be removed from the car if to disconnect two fuel hoses connected to a collector.
10. Before installation replace sealing rings on both parties of injectors.
11. Further installation is carried out upside-down removals.



1. Execute the operations described in subsection 5.2.11, points 1-10.
2. Turn off fixing nuts and bolts and remove the top part of an inlet collector.
3. Close a pure rag inlet channels.
4. Clear the adjoining surfaces of the top and lower part of a collector.
5. Remove wires from a fuel collector.
6. Disconnect sockets of connection of injectors.

7. Remove the socket of connection of the sensor of provision of a bent shaft from an arm.

8. Remove a cap from a control branch pipe of pressure of fuel and release the remained pressure.
9. Turn off three bolts and remove a fuel collector from an inlet collector.
10. Remove clips of injectors and remove fuel injectors.


1. Before installation of injectors oil sealing rings engine.
2. Pay attention to the correct provision of installation of injectors.
3. Installation is carried out upside-down removals.

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