P0453 Code after replacing EVAP purge valve

[BrianV70]

Howdy!

A few weeks ago I replaced my evap purge valve with a new one. The P0446 code went away and has not returned. However, it has been replaced by a P0453. Other clues:

I have not replaced any vacuum hoses.

I have had occasional fueling problems - tank not venting and fuel spewing out of the filler neck. Then, can only add a trickle at a time. Both times it coincided with cold weather, and then fixed itself. (the first time, I blew out the filter on the filler neck with compressed airing it got better. Red herring?).

New gas cap.

2000 V70XC 126,000 miles.

Thanks everyone

[BrianV70]

Bump

P0446 is "evaporative emission system vent control circuit malfunction"

and to add that the code is intermittent. Comes and goes on its own.

[abscate]

I recall this is a symptom of blockage in pipes near the fuel filler on a late, "bastard" P80