Hi my car has these fault codes and emissions workshop and eml light is on

Boost pressure regulation limit exceeded (over boost condition) p0234

EGR System insufficient flow p0401

Motor for intake manifold flap open or short to ground p3101

Fan 1 short circuit to ground p0691

Motor for intake manifold flap no signal p3102 intermittent

The boost pipe after the egr was loose so put an new clip and secured that and deleted codes.

Over boost codes have not come back after a blast up the road and back but egr and intake manifold codes are still present. Reading through the thread seems like I need a new intake manifold flap and also egr ? Seems like a pretty common issue.

Please advise, also any other common issues on the bkd engine, oil pump balance shaft? thanks