Reddit reviews JND Fool-Proof Engine Ignition Spark Tester
We found 1 Reddit comments about JND Fool-Proof Engine Ignition Spark Tester. Here are the top ones, ranked by their Reddit score.
Must-have diagnostic tool for any engine with a spark plugWhen engine won't start, gives instant answer to 'does it have spark?'Simple to use - just remove rubber boot from spark plug, insert tester & place tester boot on plugTurn the engine over - if ignition is being sent to the cylinder, light in tester glowsGreat time and frustration-saver with cars, motorcycles, boats, chainsaws, lawn mowers & more
I would suggest diagnosing it, there are a lot of things that could be wrong. First I would check for spark and injector pulse, and I would jump out the codes like in that link I gave, to be certain that the 51 code is a powertrain code and not an ABS code. Because if you do have a 51, you probably need an ECM.
Between the ICM and the ECM, The ICM is the much more common failure point. It is where your 3 ignition coils sit. It's the more common failure point, but it is also often misdiagnosed when the culprit is a bad crank sensor as another poster suggested.
Start with testing spark and injector pulse. If you don't know how you need a Spark Tester and a Noid Light.
Side note, I much prefer this sort of spark tester because it has more utility, being able to measure actual kV can be very handy on some cars, but the cheaper one will work fine for you. If you are going to work on your own vehicles, a Spark Tester and a Noid Light are both must haves.