Hi Ive got these fault codes

230 fuel pump primary circuit malfunction
233 fuel pump secondary circuit intermittent Ckt
235 Turbo/super boost sensor A circuit malfunction
243 turbo/sup wastegate solenoid A malfunction

Symtons.

Lack of power, black smoke, revs limited. These can happen and clear themselves in the same journey. Ive had a small fault for a year that when really revved hard, like when overtaking the lights come on and ive lost more revs, then it would clear itself, and never happen unless i really pushed it hard. Then in recent weeks its got worse.

Where do i start with these codes?

any help is really appreciated.

Just to add some info as a alot have looked at this.

My van starts and ticks over lovely. just seems to enter limp mode very quickly. swapped the air mass sensor as mine was black inside and seems to be better in that i havent seen loads of black smoke out of it again, as it did this accelerating before.

thinking egr valve might need a clean or replacing, and or wastegate solenoid, but where are they? a picture would be brilliant. 2.0 jtd thanks

Seem to have sorted it!!

Theres a small piece of rubber hose that joins directly onto the turbo from the air filter. needed it up on ramps to see it but it was split! Dealer only but was just £10. All faults clear for now and driving ok again. hopefully this might be useful to someone else.