wifey's 02 obw fills 1/2 gallon, shuts off pump. she drives a lot, is annoyed, my problem now. canister under fill pipe was replaced a few years back after it was cracked during a hitch install. is the canister prone to clogging? gonna try to drop it a bit, find the vent to the filler, get my self in to trouble and generate some codes, keep a dealer tech employed one more day...

their is a anti sifon plug in bottom of filler tube mabee is not clocked right only works if strait up and down.