9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
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Ignition Coil: Description and Operation
Ignition Coil With Integrated Power Stage (320)
Main task
An ignition coil has the following tasks:
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Generate the high-voltage spark that starts the combustion.
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Together with the spark plug, measure ionization current.
These signals are used for knock control, synchronisation of ignition timing/fuel injection and for misfire detection.
Type
Inductive ignition coil with integrated power stage and circuits for ionization current measurement.
Connection
Pin No. 1-4
