evap problem code po441
 

have a 01 hyundai accent 1.6l and i've been have the code po441 for like forever now and idk what to do. when it first came on i took it to a shop and they smoke tested it and said there wasn't any leaks so then i just said whatever. so now i replaced the purge canister because the old one was bad and the cel is still on. does anyone have any ideas on what to do ????