Bit of an update.
Received my OBDeleven.
Getting 2 engine faults recurring.

P119A fuel pressure sensor malfunction.
"upper limit exceeded"



P1647 check coding/versions of control modules in drive train
"implausible signal"

I clear this and the engine stops rev hunting

The second code is pretty much constant, the first comes and goes a bit

Thoughts?
Fuel rail pressure 40 bar at idle
Fuel pump at idle 4.8 bar

Fuel rail pressure 4000rpm in park 67bar