Cold start issue clubman turbo
 

Hi all,
first time posting. I purchased a 2009 r55 clubman s turbo, it had a bad clutch and severe oil leaks, we replaced head gasket, vanos solonoids, front and rear seals, it then showed a high pressure fuel system fault which we replaced as well as in tank pump and filter. Now when it starts its undriveable until it warms up. On my scan tool it shows up while it's cold as no fuel pressure set point and no voltage on brake booster pressure switch . Once it feels happy the fuel pressure set point and actual are both 5mpa and the car is happy. It shows 0v on brake press sensor and -185 kpa . Still shows up on scan tool daily with high pressure system fault.
has anyone had anything similar after replacing both pumps ?