vacuum part question

[Jered1011]

Hi guys I have a 99 explorer sport and its missing a part. Starting at the vacuum test port next to the radiator. What does that hose connect to? I think it has a couple hoses connected to it. Anyway the part broke off at some point and check engine light came on OBD2 code P0455. I just dont know if its a valve, or just a connector, or? Thanks a ton for any help

 

[J_C]

I'm drawing a blank. The code is for the evap system which makes me suspect you have a pressure sensor for the fuel tank that's reading high.

There should be a hose from the intake manifold to a canister near the wheel well, that then goes back to the fuel tank.

Which engine? Pictures couldn't hurt. If nobody else has more info then I'd suspect it's just a connector.