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Quoted from Eric_S:I would agree that it seems like there is a switch wire shorting to a coil lug. Spend a lot of time really looking close at all of the coils to see if any switch wiring is in close proximity.
Good advice. I would also encourage you to bring in a friend or even a wife for a child to look at it as well it's amazing how another set of eyes can pick things up that you are missing.
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