Ford Focus Mk2 Burning Oil

[Will_L300]

Hi All

I've been having a read through several posts and getting several answers about an oil burning problem I have. I have a 07' 1.6 Manual Petrol Focus Zetec Climate. I seem to be burning oil somewhere. There are no leaks that I can see, and I don't get a consistent burnt oil smell. It is only mainly noticeable when in traffic, and with my vents open.

Having done the reading, i'm guessing the PCV valve might be my first port of call? As well as the breather pipes? I believe the 1.6 valve is at the back of the block, any tips/tricks/ideas for access?

When I remove the fuel cap, there is an audible sigh as well if that helps? 

[F0CUE]

The fuel system Is pressurised so it's normal for air to escape when opening the tank. The PCV and hose is directly behind the intake at the front of the engine if you put your hand in the back of the of the right hand side of the intake manifold toward the block you will find where it connects it's quite tight in there but manageable to pull out. Mines below before I changed the pipe follow the pipe but easier to grab the PCV end on the right hand side.