Opel Vectra B

since 1995 of release

Repair and car operation



Vektr B. Opel
+ 1.1. Governing bodies and control devices
+ 2. Maintenance
+ 3. Engines
+ 4. Heating, ventilation
- 5. Fuel system
   - 5.1. Fuel system of petrol engines
      5.1.1. Introduction
      5.1.2. Technical characteristics
      5.1.3. Air filter and inlet channels
      5.1.4. A control system in temperature of air submitted to the engine
      5.1.5. Accelerator cable
      5.1.6. Accelerator pedal
      5.1.7. Fuel
      - 5.1.8. System of injection of fuel
         5.1.8.1. One-dot system of injection of fuel of the SOCH engine of 1,6 l
         5.1.8.2. Multipoint system of injection of Multec-S fuel of the DOCH engine of 1,6 l
         5.1.8.3. Multipoint system of injection of Simtec 56.5 fuel of engines 1,8 and 2,0 of l
      5.1.9. Pressure removal in fuel system
      5.1.10. Fuel pump
      5.1.11. Fuel level sensor
      5.1.12. Fuel tank
      5.1.13. Throttle case
      5.1.14. Check of system of injection of fuel
      5.1.15. Elements of one-dot system of injection of fuel
      + 5.1.16. Elements of multipoint system of injection of fuel
      5.1.17. Inlet collector
      5.1.18. Final collector
      5.1.19. System of production of exhaust gases
   + 5.2. Fuel systems of the diesel engine
+ 6. Systems of start, ignition
+ 7. Transmission
+ 8. Brake system
+ 9. Running gear
+ 10. Body
+ 11. Electric equipment
+ 12. Main malfunctions





5.1.8.3. Multipoint system of injection of Simtec 56.5 fuel of engines 1,8 and 2,0 of l

GENERAL INFORMATION

Multipoint system of injection of Simtec 56.5 fuel of engines 1,8 and 2,0 of l

1. The sensor of temperature of air arriving in the engine
2. Measuring instrument of a stream of air
3. Pressure regulator
4. Butterfly valve potentiometer
5. Sensor of a cranked shaft
6. Step-by-step engine of management of idling turns
7. Camshaft sensor
8. Detonation sensor
9. Catching system паров fuels
10. Ignition block
11. The sensor of temperature of cooling liquid
12. System of repeated burning of exhaust gases

The system of injection of Simtec 56.5 fuel is identical to the Multec-S system established on DOCH engines of 1,6 l. The unique difference of system is that instead of the sensor of measurement of absolute pressure in an inlet collector the measuring instrument of a stream of air is established.

Additional feature of Simtec system is that the path of supply of air in the engine has variable length to guarantee maximum efficiency on high frequencies of rotation of the engine and at most a capacity on low frequencies of rotation of the engine. The inlet collector is divided into two highways of various length. Each path of an inlet collector is equipped with the valve. The valve copes the ECU block via the electromagnetic valve and a vacuum diaphragm.

On frequencies of rotation of engines less than 3 600 rpm valves remain closed and the air arriving in the engine should go on a long path that leads to increase in a torque.

On higher turns of the engine the ECU block switches the electromagnetic valve and vacuum influences a diaphragm which opens a short path for supply of air in the engine.