Ive been slowly fixing some small issues on my car, most recently a missing crank to A/C belt.... don't ask where it went. When digging around the engine bay I found this hose towards the back of the engine towards the fire wall. It was poking out towards the top of the engine. I tried to look at some engine bay picture and schematics but no luck so far. I am not sure if it should be plugged up or if it belongs somewhere. Here are some pictures. I will try and track it down, but I just know it goes down parallel to the timing belt towards the bottom of the engine. It also has a clip which I believe holds it in place. Any ideas, please let me know. I will continue to dig for more info. Thanks.