Simonx

Thank you. This is a great community! I can rule out the gas cap, I already tried that before I ran the diag. I'll check the hose and possibly replacing the VSV. do you guys recommend replacing it with the Genuine Toyota part or a 3rd party? Genuine part - $70 http://www.amazon.com/Genuine-Toyota-90910-12271-Vacuum-Switch/dp/B00GJJL2CG/ref=sr_1_1?ie=UTF8&qid=1422932461&sr=8-1&keywords=90910-12271 3rd Party - $28 http://www.amazon.com/Dorman-911-602-Vacuum-Switching-Toyota/dp/B003P9US2I/ref=sr_1_2?ie=UTF8&qid=1422932461&sr=8-2&keywords=90910-12271 Is there a service manual that shows you how to do this? I'm very novice when it comes fixing cars, the youtube video in your link wasn't too detail on taking the canister out

Hi all, My engine light has been on for a while and today I used a wifi odb dongle ran diag and it gave me a code "P0446 - Evaporative Emission System Vent Control Circuit", After calling couple shops they suspect its the evap cannister vent valve. 1) is that the samething as Vacuum Switching Valve (VSV) ? 2) I would like to do it myself and wonder if any of you have instructions that could help me on this? Thanks all!