IGNITION COIL CONSTRUCTION/OPERATION [MZI-3.7]

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Construction

• Direct ignition coils installed directly to each spark plug have been adopted. By adopting direct ignition coils, high-tension leads have been eliminated in order to simplify the parts of the ignition system, preventing voltage reduction, and improving the firing efficiency.
• Independent firing control has been adopted to eliminate firing without spark, increasing firing energy.
• The direct ignition coil consists of an ignition coil, ignition coil connector, and boot area, which has the same function as the high-tension lead.

Operation

• The firing timing of the coil is controlled by the PCM by means of a built-in igniter for optimum ignition timing control.

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Terminal layout

Terminal | Signal
--- | ---
A | Power supply
C | Ignition coil control signal