09, 335d, 55k. Having very similar issues as welly. Rail actual drops below request enough to go into limp mode at WOT(forget the difference required for fault). Trying to read the rail pressure with an o scope I get the following. Does this point to the HPFP? Have testO logs as well, I’ll upload to link below shortly.
https://drive.google.com/drive/folde...L4?usp=sharing
https://drive.google.com/drive/folders/1mhlO5oE_uNSDo0avyllN0DsKAH6JxhL4?usp=sharing