Well have just took car for a spin following replacing regulator on a 2005 2.2 direct and what a difference.
i knew car wasn't running right when i was being totally left behind by a 1.9 diesel and following breaking down a couple of times and having it teched 2 thought this might be the problem.
all i can say is that the power is back and im well happy
btw Paid £57 for part and literally 10 mins to fit. Vaukhall wanted £150 Supply and fit and dont even know if this included VAT.

next on list lexmaul bumper and double din.