Question:
the tester doesnt come with instructions that tell you how to test the spark plug, wire, or coils seperately. So if you stick the tester on and the light doesnt pulse while cranking, how will you know if its the wire, the spark plug, or the coil/ignition problem?
Answers:
Need help to fix a 1998 ford taursus?
move it from point to point along the systemMy engine light is flashing and car cutting out any ideas what to do?
Good questionThere are many different types of testers, and I have no idea which one of the many you have, but generally they are a pass/fail type tester. Either there is, or isn't, spark. If there is not, it would be up to you to find out why there isn't.
most just plug into the coil.and should flash when u turn it over
If you substitute a spark tester in place of a cylinder's spark plug, then you can see if good blue spark is getting to that cylinder's spark plug. However, some spark testers only work if you have spark plug wires rather than COP (Coil Over Plug) systems which have no spark plug wires.
just use a spark plug.put a plug on the plug wire and carnk the engine,to see it sparks,and also you can use a olm meter to check the wires.
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