it goes (attaches) into the intake manifold, the tube goes to the back of the engine somewhere. there is a picture of it at bay13 under vacuum lines. the black box to the left is the power steering reservoir. if you still dont see it, try to feel the hole in that area. you might have lost yours already. 1st look and i saw mine, then again i have a 96. not sure if a 94 has one. run a finger on that spot and see if you feel a hole.