N14 problem

I have a n14 celect plus red top 525hp just had inframe done about 15000 miles ago truck started missing randomly then today left out and truck started sputtering like it was running out of fuel I replaced fuel pump check valves, bypass one fuel tank by running a line from fuel pump straight to tank same result switched to other tank same results put a new sensor located by the oil pump engine position sensor ( I think that's the name) no help got my insite hooked up got inactive codes
0322
0331
0332
0323
0325
0324 Don't know if they are old but they were inactive

Did a test that stated fuel has been detated because of lack of air (boost pressure) I removed air filter and had the same results check fins in turbo everything spin free and no play

Thanks in advance

 

The truck don't have a boost gauge but my air to air is only about 6 months old

 

No

Not saying it's not leaking but how could I check it

 

New filter today sorry I left that out

 

It dies once it's under pressure mostly in 8 -10 gear but if I stay on the pedal it will cut off if I shift to neutral it will level out

 

And run good until I put pressure back on it