Post a pic of it. Use the black "new reply" button (not the "quick reply" box) and there is a paperclip icon that you can use to attach it in thumbnail format.

 

Now I'm thinking fuel pump because this is what my trunk looks like. It has this plug here and I actually found a fuel injection pressure tester kit in the trunk.
This is the small vacuum line I was talking about.

 

Not positive but I believe that is the fuel pressure vacuum reference line (and I may be a hair off on the name too, lol). I'm thinkin a trip to your local hardware store should turn up a suitable replacement. Take a little piece in there with you if possible to match up the i.d. of the hose.

 

You can clearly see a broken/ disconnected vacuum line in the picture, also I'm pretty sure the line with the red strip is the EVAP purge valve line. (Canister to Plenum)