This unit troubleshoots the contemporary coil-on-plug ignition systems found on General Motors, Chrysler, Ford and Import vehicles.
Features:- Flashing bulb indicates ignition or fuel delivery problems.
- Checker shows a duplicate view of the ignition spark so technicians can visually check the condition of the ignition system at each cylinder.
- Frequency and intensity of flash indicates whether there is an ignition problem or fault in the fuel delivery system.
- Clear plastic body designed to withstand rough use and resist automotive chemicals.
Tool Aid 23950 Coil-On-Plug Ignition Spark Checker 
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