Something In my #5 Cylinder?
Walker434 said
Yep, by the way I already have an AFR gauge.
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That's a good thing. Now as you learn to read your spark plugs you can verify the A/F readings.
Like any other measuring device of its kind, it can fool you if you aren't careful.
As long as the plugs are following the O2 sensor you'll be getting good info.
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