Does the GDI have a PCV fitted to an oil separator.

In which case there's no point plumbing to the catch tank and then to the manifold.

The oil separator will do the same job as the catch tank.

I know it's a different engine but that's the arrangement Ford used on the PCV system on the Zetec.

Bob

2009 Black Roadster
1999 4/4 2 litre Zetec