I've seen those for conventional spark plugs. Evan have one somewhere,
but I don't see how do you use then for the COP system?
You could test for the current going into the coil. Wouldn't a bad
coil show a code?
Curt Raymond via Mercedes <mailto:mercedes@okiebenz.com>
January 26, 2020 at 6:35 PM
Inline spark tester is a beautiful thing. I don't remember what I paid
for mine but it's absolutely worth it.
Curt
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