Honda Repair: p1457, vent valve, honda tech

Question
Recently pulled p1457 code on my 2002 Odyssey,
I have replace almost all components, with no luck!
Can you help ? What is in the fuel Tank, that can cause a problem.
Any help would be appreciated.
Thanks
Ted

Answer
Ted, i guess others have been having similar problems with this code too. Here is a link for some information.   http://www.honda-tech.com/showthread.php?t=2469852   Sounds to me like its a canister vent valve... whatever that is lol hope this helps you...