errore engine help

[Mimmo y1.2]

ragazzi ho questo errore sulla 1, mi succede solo quando è in rigenerazione il fap sapete aiutarmi a copire cosè la causa?

Address 01: Engine (J623-CAGA) Labels: 03L-906-022-CAG.clb
Part No SW: 03L xxx 0xx JM HW: 03L xxx 022 B
Component: R4 2,0L EDC H01 3173
Revision: 11H01---
Coding: 0104002C18072118
Shop #: WSC xxxxx 785 xxxxx
ASAM Dataset: EV_ECM20TDI03L906022JM A01005
ROD: EV_ECM20TDI03L906022JM.rod
VCID: 79F3F33DF8C2731

3 Faults Found:
4912 - Exhaust Gas Temperature Sensor 4 Bank 1
P246E 00 [175] - Electrical Malfunction
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Mileage: 154377 km
Date: 2015.11.14
Time: 22:47:23

5172 - Boost Pressure Regulation
P0234 00 [101] - Limit Exceeded (Overboost Condition)
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 154381 km
Date: 2015.11.14
Time: 22:50:04

5258 - Exhaust Gas Temperature Sensor 4 Bank 1
P246E 00 [175] - Electrical Malfunction
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 154377 km
Date: 2015.11.14
Time: 22:47:28

ho concellato lerrore quello della turbina è andato via ma quello del sensore 4 no