Opel Astra, Zafira

Since 1998 of release

Repair and car operation

Opel Astra
+ Cars Opel Astra and Zafira
+ The operation manual
+ Routine maintenance
+ The engine
+ Systems of cooling, heating
- The power supply system and release
   + The power supply system
   - System of injection of fuel of petrol engines
      Principle of functioning of systems of injection of fuel
      Check of serviceability of functioning of system of injection of fuel
      Removal and installation of components of system of the central injection of fuel Multec
      Removal and installation of components of systems of the distributed injection of fuel Multec-S and Simtec-70
      The monitoring system of temperature of soaked up air (model with the central injection) - a principle of functioning and check of serviceability of functioning
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
   + Systems of injection and turbo-supercharging of the diesel engine
   + Systems of release and decrease in toxicity of the fulfilled gases
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Check of serviceability of functioning of system of injection of fuel

Preventions in the beginning of section of Sbrasyvanie of pressure in the power supply system of petrol engines see.


  1. Check up reliability of fastening of electric connections of a chain of system of injection, special attention giving to a condition of plugs of grounding. Attentively examine all systems concerning functioning electric sockets. Infringement of quality of electric contacts involves set of problems and is at the bottom more than half of engine failures.
  2. Check up level of a charge of the battery. Accuracy of management of structure of an air-fuel mix to a great extent depends on serviceability of functioning ECM and the information gauges, defined, including, and level of pressure of their food.
  3. Check up a condition of a filtering element of an air cleaner (Routine maintenance see the Head), - even partial infringement of passableness of the air filter makes essential impact on profitability of the expense of fuel and efficiency of return of the engine.
  4. If the safety lock of system of injection is beaten out, replace it, - if the new safety lock also fails at once, address to schemes of electric connections (the Onboard electric equipment see the Head) and check up a corresponding electric chain on presence of signs of short circuit on weight.
  5. Check up connecting air cleaner and the inlet pipeline an air sleeve on presence of signs of development of the leaks conducting to infringement of correctness of configuration of an air-fuel mix. Also check up a condition of the vacuum hoses connected to the inlet pipeline.
  6. 6 Disconnect the air sleeve going from the case of a throttle and check up last on presence of traces нагарообразования and other adjournment (in particular on sites near to throttle заслонки). In case of revealing of signs of pollution of a throttle Systems of release and decrease in toxicity of the fulfilled gases see and make diagnostics of malfunctions of systems of ventilation картера (PCV) and рециркуляции the fulfilled gases (EGR). Process a throttle one of types of special cleaning aerosols, suitable for the use on equipped каталитическими converters and ljambda-probes of cars, wipe the processed surfaces pure rags.
  1. At the working engine serially hear by means of a stethoscope to each of injection injectors, - uniform пощелкивание testifies to serviceability of functioning of an injector. At absence near at hand a stethoscope, take advantage of a long screw-driver, simply pressing a tip of its sting to the case of an injector and being guided by vibrations transferred on the handle.
  1. At revealing of signs of infringement of functioning of an injector it is necessary to take advantage of a special lamp-sampler (ask in shops of automobile accessories). The lamp is connected to an electric socket of a suspected injector. Start the engine and test a lamp all injectors. The uniform blinking of a lamp confirms serviceability of functioning of a component. Otherwise the car should be driven away on a car repair shop for more detailed diagnostics.
  1. Muffle the engine, disunite electric sockets of injectors and measure electric resistance of each of them. Compare results of measurements to standard requirements, - demanded value makes 12—16 Ohm. Faulty injectors are subject to replacement.
  1. Check up self-diagnostics system on presence of codes of malfunction stored in its memory (the engine Electric equipment see the Head).

It is necessary to charge performance of more detailed diagnostics of a condition of system to experts of the car-care centre, having all (expensive enough) equipment necessary for it.

Skilled motorists in the presence of certain knowledge and the corresponding equipment (including a tachometre and the calibrated gas analyzer) can check up the maintenance in the fulfilled gases монооксида carbon (WITH) and quantity of turns of idling. Nevertheless, if checked parametres demand carrying out of adjustments, it is necessary to charge their performance to experts of the car-care centre, having the expensive special diagnostic and adjusting equipment.