07 berlingo 1.6 hdi , intermitting power

[Bemluc]

Hi there, my Berlingo 09 75 bhp has intermitting power , I believe it’s worse in this hot weather, The actual turbo seems fine no movement on shaft and Car not smokey , I’ve jus a basic scanner it gave me the fault 0299. Any help would be greatly appreciated

[GiveMeABreak]

That code can be any one of the following, but a Lexia would possibly provide more specific information.
Boost pressure regulation: Air pressure below the reference value
Turbo pressure regulation: Pressure below reference value
Turbo pressure signal fault: Turbo pressure measured too low / Turbocharger pressure reference value