Title: Works as described
Product review: To get this tool to work you turn off your engine and then attached one rubber end to the spark plug and the other end to the spark plug wire. Then, start the engine. The light shines fairly bright and the light pulses. So, if the spark plug is not firing as good as the other plugs, the light will not pulse as frequently or as bright.
Would you say this review depicts the product in a flattering or unflattering light?
