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IGNITION SYSTEM

The various components that control the igniting of fuel in the engine's cylinders. The ignition system has two parts: the primary side (the distributor and electronic control module), and the secondary side (the ignition coil, distributor cap, rotor, spark plug wires and spark plugs).
Related Terms
Coil-On-Plug Ignition
Distributor
Distributorless Ignition System
Ignition Module

In distributorless ignition systems, there is no distributor. Each cylinder has its own ignition coil (see Coil-On-Plug Ignition), or coils are shared between paired cylinders that are opposite one another in the firing order (See Distributorless Ignition System).

Related Resources:

The Ignition System
Here I discuss how the engine produces the spark and how it does it at the proper time.

Ignition Coils
How to inspect, test and replace the ignition coil in your car.

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