i have to the same problem can you tell me where it goes

There will be a small vacuum hose coming out of a large wire loom directly behind the L shaped vacuum fitting that he has a picture of a bolt stuck in. That's where it connects.

Mystery hose
 

Hey man I'm probably too late, but in case you're still wondering, I'm pretty sure that's where your PCV valve connects. There's a long metal tube that runs from the pcv valve coming out of your valve cover back to where that hous with the bolt sticking out of it is.

Glad you are trying to help but please keep an eye on dates, The original post is 6 years old and the original guy that posted it has not be on this site for almost 6 years. I think he got it figured out, sold the car or died of old age by now.