Testing a spark plug with a multimeter is a simple process that can help you determine if the spark plug is functioning properly. A spark plug is a small but important part of an engine that is responsible for igniting the air-fuel mixture in the combustion chamber. When a spark plug fails, it can cause a variety of problems, including engine misfires, rough idling, and poor fuel economy. By testing the spark plug with a multimeter, you can quickly and easily determine if it is the source of your engine problems.
To test a spark plug with a multimeter, you will need the following tools:
