EGR related code P0407

Hi all Audiers.

Had this car for a while now and really enjoying it but it started going into limp mode the other day and I suspect the EGR valve being temperamental.

Can someone help me properly diagnose and possibly find a solution? I would not like to replace EGR if is not aboslutely necessary.

If there is any other information I can provide, please let me know. Also, sorry if I have posted in the wrong place but search returned nothing on EGR keyword.

Many thanks.

Please see logs below:

Quote

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2018.01.06 14:42:05 =~=~=~=~=~=~=~=~=~=~=~=

**************************************************************

  VIN:WAUZZZ8PXBA165809  Pending DTCs ($07) ECUID:00DTCNUM:1 ISO15765-4 CAN(29bit) English

0     P0407                    Exhaust Gas Recirculation Sensor B Circuit Low

  VIN:WAUZZZ8PXBA165809  Current DTCs ($03) ECUID:00DTCNUM:1 ISO15765-4 CAN(29bit) English

0     P0407                    Exhaust Gas Recirculation Sensor B Circuit Low

##############################################################

  VIN:WAUZZZ8PXBA165809    ISO15765-4 CAN(11bit) English

DTC that caused required freeze frame data storage      P0407

Calculated LOAD Value                                   89.0%

Engine Coolant Temperature                              16C

Intake Manifold Absolute Pressure                       31.5
inHg

Engine RPM                                              952
/min

Vehicle Speed                                           16
km/h

Intake Air Temperature                                  10C

Air Flow Rate from Mass Air Flow Sensor                 14.58
g/s

Absolute Throttle Position                              89.0%

Time Since Engine Start                                 66
sec.

Fuel Rail Pressure                                      7247.1
psi

Commanded EGR                                           0.0%

EGR Error                                               0.0%

Barometric Pressure                                     29.4
inHg

Control module voltage                                  14.91V

Relative Throttle Position                              96.1%

Ambient air temperature                                 9C

Accelerator Pedal Position D                            41.2%

Accelerator Pedal Position E                            41.2%

Commanded Throttle Actuator Control                     95.7%