Gives a Visual Check of Spark Energy for Coil-On-Plug or Standard Ignition Systems.
- Connect the tool between the spark plug and the plug wire.
- The short wire is double ended to offer a straight boot and a 90-degree boot on one tool.
- With the engine running, the tool flashes a mirror image of the ignition spark.
- The additional 7" extension plug wire is used on coil-on-plugs that are recessed and hard-to-reach.
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