Where is the PCV valve on a 1998 Nissan Altima?

it is located on the engine (passenger side) right next to the idle control valve it is a pain in the but to get there and even worse to take it out, and it is connected to a little hose that comes from the engine, but to get acces to it you need to take de idle valve out first, otherwise you will not be able to the pcv plus that you might want to take the oil filter as well that way you'll have more room to work,i spent a lot of time trying to fins it on my car and i didn't find any answer it took me a while to get it out good luck...