Coil-on-Plug Spark Tester Provides an Easy Way to Check Ignition Systems with Coil-On Plugs. . Applications Include Ford, Chrysler, Mitsubishi, Nissan and More.. It is the quickest way to test for no-start conditions. . An inductive test cannot be performed, because there are no plug wires. . High visibility white lettering makes it easy to read the gap measurement from 0 to 40k.. The round knob provides easy gap adjustment and the 12 ground wire comes with a shielded clip. . The standard plug wire tip and can be unscrewed so the tester can be used on small engines and some motorcycles. 20700 Yes -