Attach the spark plug to a spark plug tester, then connect the tester to the ignition wire. Start the engine and observe the ...

The plug is con nected to the ignition coil that generates the high voltage needed to spark the fuel and create combustion within your engine.

An ignition coil is a vital component of a vehicle's ignition system. It is responsible for converting the low voltage from the battery into the high voltage needed to produce sparks at the spark ...