CPRV vacuum diagram?!

i have an 88 ford taurus 3.0l, and i noticed that i think a vacuum line is disconnected
honestly, i haven't been able to figure out where it goes
the vacuum has a little |= connector... and it has some form of motor
connected to it... and it also has a really tiny hose connected to it that's black and spans quite a length
i was thinking maybe it goes to the charcoal tank? also, i was looking at the diagram and it says CPRV, what does that stand for? charcoal pressure regulating valve?!
tia
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