Be careful when you twist the MAP sensor off, the plastic clip on it is brittle, and if you grab it the wrong way you can snap that clip... trying to put it back in, too. Just be gentle. When you get the MAP off, the PCV will be right in that hole, just pull up on the little nipple sticking out. Make sure the O-ring stays in place unless you are replacing it, I dont think new ones come with an o-ring.