My 2000 EVC has a strong raw gasoline smell after driving on a hot day at altitude after stopping. I've been unable to localize the smell precisely, but it's definitely raw gasoline (not unburnt from the tailpipe), and definitely outside the vehicle.
A few years ago, after the van was over-filled in Oregon (where you can't fill your own tank), I had the subsequent problem where I could not fill the gas tank because the gas pump would keep shutting off. That problem has since resolved, and these days I have no trouble filling the tank to full. It's likely the over-fill saturated the evap. canister with liquid gas for a time.
So where are the fumes coming from?
My theory is that the evap. canister is basically OK now (otherwise, I wouldn't be able to fill the tank), but that parts downstream from that may be malfunctioning.
The N80 valve is about $50, so I'm thinking of just replacing it.
I have no OBD-2 codes or CEL, but my understanding is that blockage of the N80 system may not throw a code.
I would replace the evap canister, but these are no longer available.
Any advice?
