Opel Vectra A

since 1988-1995 release

Repair and operation of the car



Vektr's Opel And
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
- 7. The fuel and exhaust system of models with system of injection of fuel
   7.2. General information
   7.3. Check of system of injection of fuel
   7.4. Air filter
   7.5. Air chamber
   7.6. The control unit of temperature of the air coming to the engine
   7.7. The sensor of temperature of the air coming to the engine
   7.8. Removal of pressure in fuel system
   7.9. The fuel filter on models with the fuel pump out of the fuel tank
   7.10. The fuel filter on models with the pump in the fuel tank
   7.11. Check of the fuel pump
   7.12. The fuel pump installed out of the fuel tank
   7.13. The fuel pump installed in the fuel tank
   7.14. Replacement of the relay of the fuel pump
   7.15. Pipe of a fuel-filling mouth
   7.16. Fuel tank
   7.17. Fuel level sensor
   7.18. Quencher of fluctuations of fuel
   7.19. Accelerator cable
   7.20. Check and adjustment of fuel mix on idling turns
   7.21. Fuel pressure regulator
   7.22. Regulator of turns of idling
   7.23. Sensor of provision of a butterfly valve
   7.24. Potentiometer of provision of a butterfly valve
   7.25. Air stream measuring instrument
   7.26. Measuring instrument of mass of a stream of air
   7.27. Tape measuring instrument of mass of a stream of air
   + 7.28. Fuel nozzles (except Multec)
   7.29. Fuel nozzle (Multec system)
   7.30. Check of a fuel nozzle (Multec system)
   - 7.31. The throttle case (except the Multec system)
      7.31.2. DOHC engines
   7.32. Throttle case (Multec system)
   7.33. Step engine of management of air supply (idling turns)
   7.34. Potentiometer of provision of a butterfly valve
   7.35. Electronic control device (ECU)
   7.36. Sensor of a detonation and module (X16 SZ models)
   7.37. Sensor of a detonation (Simtec system)
   7.38. An inlet collector (the SOHC engine without Multec)
   7.39. An inlet collector (the SOHC engine with Multec)
   7.40. Inlet collector (DOHC models)
+ 8. Exhaust system and system of decrease in toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrical systems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
+ 15. Brake system
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions
24bec775



7.31.2. DOHC engines

Removal

Arrangement of an arm of support of a fuel hose on the left side of the throttle case on the DOHC models

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. Weaken a collar, the fixing main air branch pipe to the left side of the measuring instrument of a stream of air.
3. Unscrew four bolts fixing the heater block to the throttle case. Separate the heater block from the throttle case, then remove a hose from the lower part of the block and take the heater block from a motor compartment.
4. Disconnect the electric socket from the sensor of provision of a butterfly valve.
5. Unscrew a nut and remove an arm of support of a fuel hose on the left side of the throttle case (see the drawing).
6. Remove an accelerator cable from the lever of a butterfly valve.
7. Disconnect a hose of ventilation of a case from the throttle case.
8. Disconnect a vacuum pipe from the top part of the regulator of pressure of fuel.
9. Check that all hoses, pipes and electric sockets are disconnected from the throttle case.
10. Unscrew four nuts and remove the throttle case from an inlet collector. Remove laying of the case of a throttle.
11. If necessary remove the sensor of provision of a butterfly valve from the throttle case.
12. Do not try to regulate draft of a butterfly valve independently. If draft of a butterfly valve is faulty, make repair in the specialized workshop Opel.

Installation

PERFORMANCE ORDER
1. Installation is made in the sequence, the return to removal taking into account the next moments.
2. If acted, install the sensor of provision of a butterfly valve.
3. Install the throttle case with new laying.
4. Check correctness and reliability of connection of hoses, pipes and electric sockets.
5. If necessary, adjust an accelerator cable.