I find it odd that you can have such a 'break in the system' and not have a EVAP code and Check engine light.
ANYTHING that allows fuel vapors to escape is enough to cause the evap test to fail - that's what the evap test does - it pressurizes the tank and then measures how long it holds pressure. If it leaks down too fast, a code is set and your CEL comes on.

BUt if there is fuel seepage in the fuel lines/pump/regulator, there would be no EVAP code. Consider what happened with my car:
I had the smell of fuel vapors around my car at times - never IN the car, just around the car. Then one tech day in GA, when the guys were changing my differential fluid, they noted that the fuel pump had stains around it's seams.
Nick started my car and let it run ten minutes or so, and he saw it - fuel seepage, VERY SLIGHT, from the seam in the fuel pump.

I just find it odd that you can have fuel vapors escaping without an EVAP code being generated. Consider other possibles, if you cannot find an EVAP leak.