Codes on my 2009 X5 35D

[Waykooljr]

I was hoping I could get some insight on some codes I'm seeing on my car.
I bought a X5 35D 2009 car as a project. It needed work and I have always wanted one. I have built 3 cummins projects and a Jetta TDi 6 speed manual that was tuned and deleted.
I deleted and tuned the X5 (no epa here), EGR/SCR delete, JR tuning 2.0 race tune, race throttle body, Buzzken downpipe with hi flow cat and exhaust, replaced the majority of the vacuum tubes, new charge air/boost piping seals as there was oil leaking and intercooler was gunked up on the passenger outside, new MAF sensor, new manifold pressure sensor. I am now getting the following codes on my Foxwell scanner.

3F01 DDE: Boost-pressure sensor, signal
3F35 DDE: charge air tube monitoring at idle
429A DDE: boost pressure control, low pressure stage control deviation
4987 DDE: Exhaust back pressure sensor before catalytic converter, signal

The tuning and delete on my TDi was so impressive i wanted to do an X5. i have a lift and do most of my own wrenching but admittedly have little training on a BMW diesel.

Does anyone have a schematic for the sensor wiring and routing and or seen these codes on a deleted tuned car?

I got the tuning and parts from AA Rodriguez who by the way is an excellent business to deal with.

Thank you!