Ignition Coil: Description and Operation

CONSTRUCTION
The ignition coil contains two separate coils.

OPERATION

Firing of The Ignition Coils
The coil packs receive their signal from the PCM to fire at the calculated spark target. Each coil within the pack fires two spark plugs at the same time. The plugs are paired so that as one fires during the compression stroke, the other fires during the exhaust stroke. The next time the coil is fired the situation is reversed.