A. No, the spark plug and ignition coil are two separate parts. The ignition coil feeds the spark plug high voltage. Q. Yeah, But How Much Does It Cost To Replace an Ignition Coil?

If you suspect a faulty ignition coil, you’ll first need to test it. “Testing ignition coils is a straightforward and fairly easy DIY,” says Aaron Turpen, an automotive expert at Car Talk.

We’re going to take an already terrific electronic ignition system and show you how to get even more from it via a PerTronix ignition module, cap and integral ignition coil.