CCV

The rear hose on carID came with 2 hoses. One for the CCV elbow to manifold and another for manifold from somewheres else. I think it may be for the MAP sensor?

I believe It plugs into top of the firewall above the valve cover. I saw somewhere in the FSM that this is the MAP sensor location.
Yes, it goes to MAP sensor. There are two fittings on the intake manifold right next to each other, one for the MAP sensor and one for the CCV. I received hoses for both as well when I ordered from CARiD.