Hello , Here to answer automotive questions and make you feel comfortable and become familiar with your product
the only part left that you did not change is the Faulty charge Air pressure sensor
Did you test the MAF ssensor
what engine do you have ? did you test the waste gate on the turbo ?
16683/P0299/000665 - Boost Pressure Regulation: Control Range Not Reached
No test on MAF
No test on MAF its not in limp mode . its drives good but just not that 1.8t boost it shoul have. dv replace . n75 working I bypassed N249 which many people do to see if its that valve
so your saying that it does not have a check engine light on ?
check to make sure that the hoses to the turbo condenser are tight and not leaking
check the turbo wastegate, it will not throw a code
what engine in the car
1.8t no leaks
then you must test the turbo wastegate. remove the hose from the wastegate and blow shop air into ot and see if it works.