I just replaced my pcv and it sticks out a little bit. Should it fit in there snug or is the movement ok? No cel came up or anything.

 

No, it shouldn't stick out. Use a pair of pliers to grip it and squeeze it down.

 

I bought a PCV Valve from Auto Zone and it stuck out like you said. I compared it to the old Nissan 1 and the new 1 was made so it stuck out. I didn't like it so I bought a new 1 from Nissan and it didn't stick out. It should probably be okay to use if your not a perfectionist!