RAV4.11mod 2.2D injector mysteria or something iffy; Help

[RAV4_2011_D_2_2_150hp]

RAV4.11mod 2.2D
History; 4x4 alarm came and went by it self the last 4 years. Dealer could not find anything except resetting alarms and noe clue what could cause it??? On our way home from holiday alarm came back and after a ferrybrake we where in real trouble; got it started but with low power running really rough on 3 to 4 cylinders, managed to get tha last few km`s home on the rigth rpm. Importend; there where no abnormal sooting so far in this history
The dealer workshop quicly diagnosed the issue to be the injector`sand kindly offered the job to 2500 euro`s
I did some research and found that it is quite normal to deliver injectors for overhauling which i did and got them back with testcertificate and everything.
Reinstalled and drove back to the dealer for reprogamming the new injectors combined with a new EU-periodic control as it was due.
It did not pass because of sooting gases...
I tried to run it for app 100km`s to flush any out if it would help but not
On my way home the 4x4 alarm came followed by engine alarm and sure just a litle after i lost power to emergenzy mode
Dismounted EGR, cleaned it (it was quite a bit) blankt it of, new test run same result, took out the blanks, testrun same result.
Airmass volume gauge: should be ok, nothing wrong with it before but changed it anyway and yes there was a remarable difference but it is still sooting
MAP-sensor lines checked; no soot or any obstructions
Turbo: could suck a golfball through a gardenhose but whats on the pressure side i can not messure
Intercooler and air delvierly hoses; can not find any leaks but this is har to check but i believe i would have found any major

Hooked up a pressure gauge on the MAP-sensor and when te engine is cold i now have app 80% effect (while sooting) after running the engine warm after app 20 minutes the effect gets less and less??? Maybe someting metallic has cracked open and the leakage increases when getting warm??

I have not checked the vacume control of the turbo`s wastegate but thats hard to do while driving 😉

There is a whisling sound that should indicate a leaky pressure filter. The only one i found is the one on the MAP sensor, are there any more??? not easy to see on these compact engeneered wonders ;)
Question; Whats next? Back to the injectors? Called the workshop that did the overhaul but they are quite confident that the problem lyes elsewhere now. The injectors passed the TUV-test and came with papers