I picked up a 1990 eclipse turbo, I got a deal on it, the only thing that it needed is a headliner and a tune up, I am going to sell it, I have to many cars, 03 mustang GR, 91 MR2 Turbo, 03 GMC Envoy & 05 Tacoma, but anyway this one has to go, but I noticed on the engine when I was doing the tune up there is a hose not hooked up & not sure what it is, so if someone can help me figure out where it goes or whats missing it would be greatly appreciated

I don't know how to put pictures on here, so if anyone has a 90 turbo can you send me pictures of the engine bay