Re: Extra Sparks?
Just to update those following this thread... I pulled the spark plugs to see if they had a story to tell. They all looked fine, but when I got to the last plug the wire popped right off leaving the metal clip on the plug.
Pretty sure that must have been a weak connection. Then I found another plug wire that was damaged. I replaced them and it seems like the surging/rough idle has cleared up a bit. It's still there for sure, but seems less now.
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