Tried searching but can't understand what's the deal with mine. I have a PH2 172 2003, I read that the pressure reg was moved from the rail but I still have the take off hose from my manifold? Should this be capped off? The previous owner has just left a piece of hose dangling connected to the manifold. Starting to wonder now why my car struggled with emissions at MOT, just doing my dephaser and there are bodges everywhere!