An ignition coil is a transformer that converts the battery’s low voltage into the thousands of volts necessary to create an electric spark in the spark plugs. This spark ignites the air-fuel mixture in the engine’s cylinders, which creates the power that drives the vehicle. Ignition coils are essential for the proper functioning of an internal combustion engine, and a faulty ignition coil can cause a variety of problems, including engine misfires, reduced power, and increased fuel consumption.
There are a few different ways to check an ignition coil. One way is to use a multimeter to measure the resistance of the coil. The resistance should be within a specific range, which varies depending on the type of ignition coil. Another way to check an ignition coil is to use a spark tester. A spark tester is a device that connects to the spark plug wire and produces a spark when the ignition coil is firing. If the spark is weak or nonexistent, it may indicate a faulty ignition coil.
