How an Ignition Coil Works - Drive Accord Honda Forums | radio-pro.ru
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How an Ignition Coil Works

Here's what's inside an ignition coil and how it works to increase the voltage to fire a spark on your car:


Here's a few photos of the ignition coil.

Starting with the coil, removed from my Toyota Corolla:


An ignition coil is located on top of an overhead cam engine. Its responsible for increasing voltage from the car's 12V to the thousands of volts needed to fire a spark in the combustion chamber:



When chopped open you can see the coil and other layers, along with the center iron core:



Here are all the components inside the ignition coil:



Here's a system diagram of how the ignition coil works electrically:


Note its the voltage spike caused by varying the electromagnetic field that fires the spark, and not just the step up transformer itself.

Enjoy!


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2004 Toyota Camry

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