on mine Cayenne 3.2 V6 i had a initial error for P0441 (Purge valve canister) so i went to pick up a new and change it and cleared the codes. Now after the valve is installed i am getting a P0444 circuit open (MIL on) and i cannot find where the issue is coming from at this moment. I already checked the fuse and i know that the valve is new, since i replaced it myself. Do you guys know what can be the issue in this case? I am assuming there were other cars with the same issue and any help will be highly appreciated.