valve seals

So all the research I've done says the PCV valve on my 2005 Mazda 3 is located behind the intake manifold, so what is the part located at the back right hand corner of the valve cover? It got broken during valve cover gasket replacement, and I need to get a new one but it's kinda hard to do when...

I know I know, this had been addressed many times but I'm really on the fence for what's wrong with this thing and seeking insight or ideas I haven't tried to nail down the actual problem. The Car: 2003 Protege5 Wagon, 170k miles, manual trans, no mods As far as I can tell original engine and...

Sorry in advance if someone else has covered this but I couldn't find any info on the subject, I have an 02 Mazda protege5 2.0 and recently it has started burning oil, quite a bit. It always burned a little on start up but stopped not long after so I assume its valve stem seals and now their...