P2002, p0544 error codes

[aj1soad]

I've got a 2009 A3 TDI 2.0 170 cbbb engine.
Everyday I scan the car and I get p2002 up and sometimes I'll get p2002 and p0544. Sometimes the glow plug light will also flash and sometimes the car will produce a lot of smoke. Most of the times it drives perfectly fine. Where do I start? Changing the EGT sensor under the turbo or changing the exhaust pressure sensor ? I've got VCDS but not sure what to actually check to narrow down the problem. Do I need to check the soot levels or do a force regen ?

8194 - Particulate Trap Bank 1
P2002 - 000 - Efficiency Below Threshold
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 11
Reset counter: 255
Mileage: 352996 km
Time Indication: 0
Date: 2019.04.15
Time: 06:58:53

Freeze Frame:
RPM: 2001 /min
Speed: 106.0 km/h
Pressure: 3 mbar
Hex Value: 0xFF01
Temperature: 270.0°C
(no units): 209.1
Mileage: 300 km

001348 - Sensor 1 for Exhaust Temp Bank 1 (G235)
P0544 - 000 - Circuit Malfunction - Intermittent
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 11
Reset counter: 255
Mileage: 352996 km
Time Indication: 0
Date: 2019.04.15

[vag_tech]

What’s the max dpf pressure during road test?
Check with second person monitoring the laptop via measuring blocks.

[aj1soad]

Sorry to be annoying how do I get that up ?

[vag_tech]

In VCDS, in the area you can read and clear the faults you have an option to view “measuring blocks”, or, if available, “advanced measuring blocks”.
*For measuring blocks: cycle through until you find the required data (someone else will know exact designation, but should be obvious).
*For advanced measuring blocks: simply check the box of the data you want to stream.

[aj1soad]

Checked some of the figures on adv mes and showed these
Oil ash volume 0ml
Carbon mass (spec) 23.7
Carbon mass (act) 0

[aj1soad]

Also shows driven distance since last regen 480km
When I tick the boxes for
Temp prior turbo shows 132oC
Temp prior particulate filter Blank
Temp after particulate filter Blank

Should the sensors on the particulate filter be showing some temps ?

[vag_tech]

Need the max pressure value from road test.

[aj1soad]

Took the car for a spin now and I put my foot down. Around 3500revs it hesitated then the power came back. Few seconds later the car started smoking a lot. Scanned it and came up with both codes again. Switched the car off and on again and its stopped smoking

[aj1soad]

Checking adv mes now and is it
Particulate filter pressure -5mbar
Particulate filter offset 0mbar ?

[vag_tech]

If you got 5mbar as the max value on road test either you have a pipe blown off/split or the sensor is faulty.
Inspect pipes to pressure sensor.