Why is my coil misfiring?

From the spark plugs to the ignition coils, many different things can cause an engine to misfire. The most common causes of misfires are worn, improperly installed, and mishandled spark plugs, malfunctioning ignition coils, carbon tracking, faulty spark plug wires and vacuum leaks. via

What are the types of ignition coils?

Types of Ignition Coils

  • Distributor ignition coils. With a distributor ignition coil, the high-voltage pulse generated by the ignition coil passes through an ignition cable to a mechanical ignition distributor.
  • Block ignition coils.
  • Pencil coils.
  • Ignition coil systems (“rails”)
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