05 VOLVO truck VED D12 engine lacks power and makes 4mpg.. what is wrong?

On my truck compression test is ok - over 90% on all the cylinders.. computer throws no codes so electrically everything seems to be OK but you might be right.. It should be mechanical so either injectors or camshaft maybe ?
I can clearly hear engines misfire and slow response to gas pedal..

 

Cylinder balance was around: +/- 10 on 4 cylinders and around +/- 40-50 on two of them :/ would say like 2nd and 4th cylinder.. dont rememebr exactly.. but even when I changed this high balanced injectors it didnt change

Do you still think it might be injectors??

And also when disconnecting front camshaft position sensor on running engine nothing happens, only rear cranshaft position sensor makes a difference when disconnected.. also same thing with cranking to start the engine up.. all sensors new

 

I did:
overahul engine,
rebuild the head,
checked epg,
new fuel pump,
put ecm from other truck
new boost sensor.. boost is up to 30 on the road

I know for sure the truck was in accident, got hit in front but that wouldnt change anything would it? it wasnt serious cause hood is still the same, just the paint differs a little

forgot to mention when I disconnect front camshaft position sensor computer doesnt see it.. there are no codes..
when I disconnect crankshaft position sensor ecm throws codes right away

 

injectors are fine I check the wires first than maybe change injectors
thanks for help