Our Review/Thoughts

So far I didn't find out any wrong on this tool

The body is plastic, antennae a metal rod covered with rubber, and the probe very thin plastic

I had one truck that was back firing

Therefore I could see where one would be quite disappointed thinking you were replacing a bad coil and solving a problem only to find out the tool was not giving you a false reading

Would highly recommend this tool

On the positive side, it does detect a spark if you can get it to that sweet spot on the coil

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