Here's what I found about your PCV valve
"After removing the top plastic cover on the engine, (should be one 8mm bolt on top), the PCV valve is located on the driver's side valve cover near the firewall or the rear of the engine. It has a hard plastic hose attached to it that curves up to the top of the engine directly underneath the cover you removed first. The PCV valve is just simply pulled out and the new one pushed in."
Simply find it, pull it out and shake it. If it doesn't move, then it's stuck. Just go get a new one and pop it in. It's cheap enough, that'd be the first thing I tried.