Why does my Cabrio stall out after refuling?

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Why would my 95 VW Cabrio stall after refuling? The last two times I refueled (the car was near empty) the car started and ran 200 - 300 yards before it stalled. This has happened in the past before and if I let the car sit for several hours it started up and ran fine. This time as I tried to get it to run the check engine light came on and the exhaust had a strange / bad smell. I let the car sit over night and it started and ran fine and the check engine light went out. Any ideas why this might be happening?