S & G TOOL AID Coil On Plug Ignition SparkChecker TA23950
A Better "YES"
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Coil On Plug Ignition Spark Checker A quick way to troubleshoot the contemporary "coil on plug" ignition systems found on General Motors, Chrysler, Ford and import vehicles. Flashing bulb indicates ignition or fuel delivery problem. Quickly plugs into boot on coil then clips to ground. Shows a duplicate view of the ignition spark so technician can visually check condition of ignition system at each cylinder. Frequency and intensity of flash indicates whether there is an ignition system problem or fault in the fuel delivery system.