Boost sensor issue?!

[karatekutya10]

Hey Folks!    boosting issue topic num2 😅🙏🏻

 

I just have a boosting issues quiet a long time ago ..symptomps is  sometimes car is pulls hard from under 1500rpm and smooth like as normal i guess 😑 sometimes pulls less hard and from arround 1700rpm ... very strange , engine ok no headlift etc 😅 turbo was changed but actuator ok ! actually same was with old turbo 🤷🏼‍♂️ maf sensor ok, car wasnt mapped , but for make sure we changed ecu for another standard one (immo off ) was same   i had no light on dash , but when i pluged new ecu and started the car shows check engine light , i read it and shows boost sensor i delete it but not come back again ... so i put back the old ecu , also change the vac box   so i think i've already replaced everything except map sensor , its just can be that even if it isnt showing any light on dash ?? or anyone have any idea ?   Thank you 

[KeithCheetham]

 Unsure if you have seen the following post, but may be some info to allow investigation, as while not same issue analysis method may be similar:-

 

[karatekutya10]

Sorry car is pd130 BLT