Mazda 3 since 2003
1. Operation and maintenance of the car
2. Engine
2.1. General description of new engines of the L8, LF and L3 models
2.1.1. Mechanical part of engines
2.1.2. Mechanism of change of phases of gas distribution
2.1.3. Lubrication system
2.1.4. Cooling system
2.1.5. Fuel system
2.1.6. System of production of the fulfilled gases and system of decrease in toxicity
2.1.7. Electric equipment of engines
2.1.7.1. General information
2.1.7.2. System of charging
2.1.7.3. Ignition coil
2.1.7.4. Spark plug
2.1.7.5. Starter
2.2. Mechanical part of engines
2.3. Appendix 1
2.4. Appendix 2
2.5. Appendix 3
2.6. The Z6 engine – a mechanical part
2.7. Lubrication system
2.8. Cooling system
2.9. System of an admission
2.10. Fuel system
2.11. System of production of the fulfilled gases and system of decrease in toxicity
2.12. System of ignition
2.13. Control system
2.14. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 








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2.1.7.3. Ignition coil

Fig. 2.70. Ignition coil: 1 – the ignition coil – the top view; 2 – secondary conclusions; 3 – the ignition coil – a side view; 4 – ignition coil; 5 – PCM block


The coil of ignition has two windings. For cylinders 1 and 4, and cylinders 2 and 3 respectively (the coordinated couples). Two secondary conclusions contain positive and negative conclusions of secondary windings. The closed contour of secondary windings consists of high-voltage wires, two spark plugs and a head of the block of cylinders. Thereof, one coil ensures functioning of two cylinders. The impulse of ignition is generated by the built-in system of ignition of the PCM block (fig. 2.70).

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2.1.7.2. System of charging
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2.1.7.4. Spark plug