I have a brown plastic small hose that is under the distributer/fuel pump that I don't know where the other end goes. I have a 87' honda crx dx (not si).
There is a small fitting near/on my fan thermo switch on the motor that one end is attched to, but I cannot figure out where the other end is supposed to go. The small brown semi-transparent hose has a id # on it ...something like vth- or vt3 then some other #'s like 3423 or something....anyway, i'd love to know where the other fitting for the hose is.....does it go to the.....oxygen sensor? carb.? (not fuel inj.)
The hose seems to want to run towards the front of the motor so.....any suggestions?

(ps. I'm a huge fan of drilling thermotats now, I learned this from here and it's been a great help against an overheating engine!).