Peugeot 405

1987-1997 of release

Repair and operation of the car

Peugeot 405
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   + 3.1. Petrol engines
   + 3.2. Diesel engines
   + 3.3. Petrol engine 1,4 of dm3
   - 3.4. System of ignition
      + 3.4.1. Contactless system of ignition
      + 3.4.2. Compound system of ignition (ignition / fuel system)
      - 3.4.3. Direct system of ignition Ignition coil Modules amplifiers of system of ignition
+ 4. Fuel system
+ 5. Lubrication systems, coolings
+ 6. System of release
+ 7. Coupling
+ 8. Transmissions
+ 9. Power shafts
+ 10. Steering
+ 11. Suspension brackets
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment


3.4.3. Direct system of ignition


The system of ignition in the engine with a working volume of 1998 cm3 the XU10J4 model (with 16 valves) has "direct" type. Components of system consist of two modules amplifiers, four coils of ignition and the sensor of a detonation. The system of ignition is combined with system of injection of fuel in a control system of the ECU engine (via blocks of the amplifier of ignition).

Each block of the amplifier of ignition operates two coils of ignition: combined with candle tips and established directly on spark plugs, one coil on a candle. It excludes application of high-voltage wires. ECU uses entrances from various sensors to calculate the required installation of a corner of an advancing of ignition and time of accumulation of energy the ignition coil.

The sensor of a detonation is installed on a head of the block of cylinders and prevents a detonation in cylinders under loading. The sensor is sensitive to vibration and finds a detonation which occurs when fuel mix in cylinders burns down with a detonation. The sensor of a detonation sends an electric signal to the ECU block which, in turn, reduces installation of a corner of an advancing of ignition while to the detonatsiyena stops.

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