01 ranger vacuum and hose that goes in intake

[jarfly]

so got my truck to crank, so now it's just to hook up the vacuum lines and see what ti does. so any how need a clear diagram on the vacuum, what I have seen has the egr valve and really can't make much of the ones I have found.
Allso for the life off me I can not think of what goes to the line that is in the back of the intake. thanks in advance.