On my 1997 CRV I have a vacuum canister on the fire wall with a few small hoses on top and a fairly good sized (1/2 to 5/8 inch) running into the bottom. On the large hose about 2in away from the canister there is a T in the line with a smaller (1/4 to 5/16 inch) hose running from it. Where does this smaller hose run to? At the moment it is laying against the firewall near the fuel filer with a barb broke off in it, but I have been unable to locate where this barb broke off at. It looks like a vacuum hose, but when I race the engine it doesn't have any draw on it.