As title suggests, the car is randomly at about 1100 RPM at a stop for a few secs, then goes back to 7-800 RPM.

I have looked at RossTech however would be great if any owner can shed some lights, as I am not sure whether this is a Low Pressure/High pressure fuel sensor issue or a rear main seal issue(which is leaking a bit but not horrible)

I have used VCDS and returned these logs for engine:

Address 01: Engine (BWS) Labels: 03H-906-032-BLV.clb
Part No SW: 03H 906 032 FS HW: 03H 906 032 AB
Component: CC3.6-FSI-EU5 G 4855


4 Faults Found:
004506 - Fuel Pressure Sensor (G247)
P119A - 001 - Malfunction - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 8
Reset counter: 255
Mileage: 114311 km
Time Indication: 0
Date: 2018.03.17
Time: 09:41:57


Freeze Frame:
RPM: 650 /min
Load: 16.5 %
Speed: 0.0 km/h
Temperature: 65.0 C
Temperature: 42.0 C
Absolute Pres.: 1000.0 mbar
Voltage: 14.097 V


001287 - Idle Control System RPM
P0507 - 001 - Higher than Expected. - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 3
Reset counter: 255
Mileage: 114323 km
Time Indication: 0
Date: 2018.03.17
Time: 11:57:21


Freeze Frame:
RPM: 1016 /min
Load: 16.9 %
Speed: 0.0 km/h
Temperature: 85.0 C
Temperature: 39.0 C
Absolute Pres.: 1010.0 mbar
Voltage: 13.843 V


000372 - Fuel Trim; Bank 2
P0174 - 004 - System Too Lean - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 114403 km
Time Indication: 0
Date: 2018.03.17
Time: 00:06:46


Freeze Frame:
RPM: 643 /min
Load: 17.2 %
Speed: 0.0 km/h
Temperature: 85.0 C
Temperature: 26.0 C
Absolute Pres.: 1000.0 mbar
Voltage: 13.970 V


000369 - Fuel Trim; Bank 1
P0171 - 004 - System Too Lean - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 114403 km
Time Indication: 0
Date: 2018.03.17
Time: 00:06:49


Freeze Frame:
RPM: 644 /min
Load: 17.2 %
Speed: 0.0 km/h
Temperature: 85.0 C
Temperature: 26.0 C
Absolute Pres.: 1000.0 mbar
Voltage: 13.843 V