310ps 66 plate Purge Valve gone

[Tangored]

Good evening, my car has recently displayed an engine warning light and erratic start stop faulty contact workshop message. It’s been plugged into a diagnostic machine and shows fault code PO441- apparently a Purge valve. From looking at this online it appears this can get clogged with carbon? It’s booked in to Audi in 2 weeks time but I’d rather get it sorted myself over the Christmas break to save time.

Does anyone who knows about this model know this issue and where the valve is located? Also what part to actually get? Help would be greatly appreciated.

Thanks