Vacuum pipe location

[shake n bake]

Afternoon all.
Hopefully a simple one, the vacuum pipe at the top side of the engine seems to have come adrift, and I can't see where it should go. If someone can point me in the right direction then that would be very helpful.
I've attached a pic of the unit, just can't see where it should go....

[kris450]

What is the other end attached to ? If its the fuel regulator (looks like that sort of diameter hose) then it goes to the stepper motor housing on the back of the plenum.

Can't think of many other vacuum pipes in that area.

[shake n bake]

It's attached to nothing, that's my problem. It is off the fuel rail I believe, I'll check that now v