I am trying to find out what it is called for the hose that runs on the top of the Canister purge valve. I have been getting the P error that tells me there is an issue with the vapor canister purge valve. I found it on the drivers side however, I noticed the hose that plugs into the top part and then runs down below to a small round canister looking thing has been glued up at the top. When looking at Canister purge valve hoses I seem to only find the one that runs at the bottom side of the purge valve. Also, I can disconnect the top, but it looks like the tube that runs into the small round canister is part of the hose. How does this disconnect? Do I have to get under the car or is it something that is going to be hard to get to?