Rogue wire ID help!

So, today I was working on my car to replace the CCV and related hoses. As I am putting the car back together, I noticed that there is this single brown wire coming out of that big cluster of wires that lies in front of the throttle body. That wire appears to have detached from something. The wire has enough length to reach the purge valve just under the intake manifold near the power steering reservoir. It is a single wire with the conduit cover but I do not know where it goes. I will try to take a picture tomorrow but if someone has a wiring diagram available, that will help a lot.



thanks in advance