Is the car difficult to start after you fill it up? I had some of the same symptoms you described, but based on your report mine were a bit more severe. My car would be hard to start and then stall several times.
I had a CEL for the Mass Air Flow sensor. After replacing that I had another CEL for the evaporative system. That required the replacement of a hose and check valve in the evaporative system. Since then, I haven't had a problem.
The technician who repaired my car warned against overfilling the gas tank. Basically he recommended that I stop fueling as soon as the pump shut off automatically. Apparently topping off the tank wreaks havoc with the fuel system. I'm not sure I understand how that causes a problem, but I've followed that advice and haven't had a recurrence of my problem.
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2000 Arctic Silver/Black, Hard Top, On Board Computer
PNP Rear Speakers, HAES 6-Channel Amp, Avic Z140BH,
Painted Bumperettes, 2004 (OEM) Top, Homelink integrated in dash with Targa switch, 997 Shifter, Carrera Gauge Cluster with silver gauge faces, heated 12-way driver & 8-way passenger seats, Litronics, silver console
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