Please Help. A6 error 19226 Particulate trap bank 1

[cip82]

Please help with an error at my A6 2015 2.0 litre ultra tdi.
Bought car last year as used car from Audi with 17000 miles. Ive done 12000 miles since then. Not a problem.
A week ago i got this error 19226.
P2002 00[168] efficiency below treshold
Mil On-intermitent -confirmed -tested since memory clear
Freeze frame:
Fault status:00000001
Fault priority 2
Fault freqvency 17
Mileage 46812 km
Engine speed 1590.00/min
Normal load value: 35.7%
Vehicle speed 44 km/h
Coolant temp. 89°c
Intake air temperature :70°C
Ambient air pressure :1010 mbar
Voltage terminal 30: 14.220 v
Unlearning counter according OBD: 40
Exhaust mass air flow of low pressure EGR : calulated: 3.017
Differential pressure ratio : low pressure EGR calculated: 20.6 kg/h
Exhaust recirc.2 differential pressure sensor 1 bank
1:adaptive value:25.3 hPa
Exhaust recirc.2 differential pressure sensor 1 bank
1: raw value : 21.0 hPa
Exhaust recircul. valve 1 bank 1 : positive feedback :
actual value : 77.27%
Exhaust recirc.valve 2 bank 1 ositive feedback: actual value :37.48%
Exhaust gas recirc.2 differential pressure sensor 1 bank 1: dynamic value: 23.3 hPa

I been to a garage who identified the error and they check for any lost pressure at the differential pressure sensor...and they identified at the turbo somebuild carbon next to a pipe. They said the DPF is blocked and there is a back pressure of gasses and they come up somewhere at the turbo.
They take out the DPF send it for cleaning. Bought a new differential pressure sensor ( they didnt adapt new sensor ..no resseting dpf nothing, only delete the error). After a few hours of driving error come back again. Most of my driving is in town. I put only bp ultimate as fuel.
Please help with readings this value and identifing the problem.
I have no loss in power, dpf regenerating is at every 160 miles or so. Thank you.

[cip82]

Nobody knows ????

[Whippy53]

Send Crasher a pm.

[Crasher]

So the fault code P2002 is still coming up? When you said 19226 what was this referring to?

18434(P2002) - Particle Filter Bank 1: Malfunction

[cip82]

Yes 19226 was there with 2002.
Maybe particle filter readings will help.
Particle filter:- oil ash volume : 0.04 l
-soot mass calculated 5.45 g
-soot mass measured -6.00 g
-km since last regeneration 106 metres
Car just finished regeneration yesterday before the readings

[Crasher]

In my experience VCDS cannot do the job properly on late cars, I end up having the use ODIS as per the dealer and take them for a good long dive AFTER the DPF has been cleaned and a new (genuine) pressure sensor has been fitted plus resetting the sensor and reducing the ASH mass figure stored in the ECU, you should not reset the ASH mass to zero with a cleaned DPF, only with a new GENUINE unit.In my experience aftermarket DPF’s on this model from B&M catalysts are a disaster, we are still fighting them for compensation for the hell they put us and one of our customers through over two years ago.

[cip82]

Hello,
Yes the error still coming up... yesterday was deleted ....ussually if i drive today a few hours should appear again.
19226 particulate trap bank 1
Dont know why is coming luke that number. I checked online but nothing. The garage had VCDS

[gal33]

Hi Cip82. I have exactly same problem with my Audi A6 2014 ultra. Did you sorted yours now? Do u know what was the problem? I would be greatful of any help!

[cip82]

Hi Cip82. I have exactly same problem with my Audi A6 2014 ultra. Did you sorted yours now? Do u know what was the problem? I would be greatful of any help!

Did not sort out yet. The problem seems to be DPF. He is not working properly. A friend from AA told me after checking all parameters that DPF needs a proffesional cleaning as level of ash is high or there is a leak of pressure. Before cleaning DPF visual inspect from turbo to DPF all the pipes for gas leak. Anyway i will clean Dpf and will replace all washers with brand new ones but the problem that dpf it is very hard to take off. It has a strange U shape and then splits into a Y shape. It has 2 screws that is impossible to get out. After you unscrew the 2 ones you have to lift engine with gearbox in order to get dpf out. I did it once but the garage said to me never come back to them. Mechanic struggle 4 hours to get it out and 3 hours to put it back for £120. They quote the price before the job. I clean dpf somewhere near Slogh with chemical solution but after i put it back error come back so cleaning was rubish. I had warranty but no one wants to get involved to take dpf out. Someone propose to take engine and gearbox out which is an expensive job. In August i will go abroad where i will properly clean DPF . I will update then. Hope that helps.
Good luck

[Crasher]

They are not too bad to do, my chaps can get one off in around 2 hours, we had good practice at it when we tried to fix a problem with a B&M premium DPF, after three warranty replacements we had the old one repaired (damaged sensor threads) and clean by DPF Clean Team in Hinckley, nice people.