How To Use Spark Plug Tester Tool. If a spark is present the ignition coil is working properly. Any regular spark plug will work after you remove the ground electrode from the shell.
Or test without a spark plug tester. Of course this has to happen with the ignition wire removed. The HEI spark tester helps in the diagnosis of the ignition system by stress testing the ignition coil and any other component.
Additionally this tool has no batteries no lubrication needed and basically a stand-alone device.
Use this ignition spark tester to check the condition of the ignition system at each cylinder. They may be immediately apparent or hidden under an engine cover or beneath pipework. The gap between the ignition tester and the spark plug will indicate whether there is a problem. The HEI spark tester helps in the diagnosis of the ignition system by stress testing the ignition coil and any other component.
