Mine is doing exactly that. Went to the dealer and said the engine purge valve was sticking. New ones are on back order for......a month! I wonder if this is a common thing that is due to poor engineering and hence they are out of stock and backordered.Thats what they told me to do, though I never do anything different when pumping gas. always put it on until it clicks every time. Light has come on about3 or 4 times now within th elast 2 weeks or so. ITs off at the moment, though only time it will come one seems ot be when its really cold out and i start driving when the needle starts to move.
oh well, I dont car that much, drives fine.