Quickly diagnose problems with all ignition systems. Connect tool between the spark plug and plug wire. The tool is double ended to offer a straight boot and a 90 degree boot on one tool. With engine running, the tool flashes a mirror image of the igniti
Spotlight customer reviews:
Customer Rating: Summary: easy hookup to test Comment: i haven't used item yet, but all other sparkplug testers require some sort of grounding and this one should be very easy to use.
