Ignition Tester, Spark Plug, DIS HEI Systems

The Performance Tool W86553 Ignition Tester is a handy tool that quickly checks if there is sufficient energy for the spark plug to ignite, helping you diagnose ignition problems in your vehicle. With this ignition tester, you can check for ignition spark without removing the spark plug from the engine, saving you time and hassle. The tester works on both DIS (Distributorless Ignition System) and HEI (High Energy Ignition) electronic ignition systems, making it versatile and useful for different types of vehicles. The ignition tester features a porcelain housing with a steel cup and clamp, making it sturdy and long-lasting. Simply attach the tester to the spark plug wire and clamp it to the engine block, then crank the engine to check for spark. The bright neon bulb indicates the presence of spark, helping you quickly diagnose the issue.