Fuel Mix/ idling issues…

Hi everyone! Hope we've all recovered from our turkey comas. :)
I've noticed over the last couple of weeks that my exhaust smelled a bit rich. A few days ago, after filling the tank, the engine sputtered and died at the light- and it took a couple of minutes and attempts to start it before it cranked back up and seemed to run normally- until I slowed to pull up the driveway and it nearly sputtered out again.
Does not seem like an idle issue, so what could it be? The car runs good, idles...

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Author: cv70chall