Hi guys got the above fault code on my car no engine management light on cant see any obvious leaks but the code says pressure drop between turbo and throttle valve any help would be great also never noticed this before i got the car mapped could this be due to higher boost pressure, its an intermittent fault starts on low power then i turn the engine off and on and it runs normal

Had this, needed the map changing to stop it. It can be down to an issue with the software.

Will get my mate who mapped it to take a look