I have no pics of this so I can only give a description.. On a 4th gen. it sits right on top of the intake manifold right next to the firewall, it has 2 short black rubber hoses connected to it. One goes to the throttle body (right next to the iac) and the other to a little black vacuum diaphram looking thing? It has an electrical connector at one end and the two metal pipes the hoses slip up on, one on the side and the other at the oppisite end.

I was thinking this was the iac, but it's not. I can't seem to find it in my haynes manual either?? Does anybody know what im talking about

Sorry i have no pics