07 B7 2.0tdi boost fault, code help needed please

[DGT]

Any ideas greatly appreciated.
Intermittent limp mode, flashing glow plug light, loss of boost then sudden boost, strange noise from intake near front when engine stopped.
Address 01: Engine Labels: 03G-906-018-BRD.clb
Control Module Part Number: 03G 906 018 AQ HW: 03G 906 018 AQ
Component and/or Version: R4 2.0l PPD1.3 G 9971
Software Coding: 0000072
Work Shop Code: WSC 00636 210 90493
VCID: 74EC6BBA176C39BE9BD
1 Fault Found


000665 - Boost Pressure Regulation
P0299 - 006 - Control Range Not Reached - Intermittent
Freeze Frame
Fault Status: 00000001
Fault Priority: 5
Fault Frequency: 1
Reset counter: 34
Mileage: 0 km
Time Indication: 0


Freeze Frame
RPM: 2144 /min
Torque: 256.0 Nm
Speed: 115.0 km/h
74.49 %
Voltage: 14.13 V
Pressure: 2257.8 mbar
Pressure: 1405.8 mbar

 

[NHN]

Sounds like a boost leak to me, that's a fair bit of the requested & actual boost numbers.

 

[DGT]

Thanks, ill check hoses etc