Hey guys I have a 2001 Audi A6 quattro with a 2.8, using my scanner im getting codes p0441 and p0322, It has a really bad exhaust leak so i ordered a new drivers side cat pipe. Also i ordered a engine speed sensor. Im going to replace those both tomorrow, but i was wondering if a p0441 code is for purge valve. Where is that thing located so i can try and clean it out or something. Any help is appreciated.