DPF regen while driving not working

[Bengt_Salmose]

Sent the DPf for professional cleaning. Was not much soot but the flow was restricted by "Eolys/Cerium" . the diagnose is due the colour of waste that was brownish/redisch , not black.
Before cleaning pressure/flow was 120 mbar / 94 m3/h and after cleaning 35/498 so the status of the DPF was good.

Installed DPF in car and reseted the learned DPF values and dif. pres. offset . All values went to zero.
All fault codes was reseted. and symboles in dash went away.
Drove 6 km , checked dif.pressure values . Idle about near zero and att 2000r/m just below 40
Then tried to start an manual regeneration . "Cant start regereneration due safety reasons"
Falult codes now comes back instant and "glow" symbol flashing
Soot values and dif.pres. at idle has increased a lot .

What is making soot values increase so quick ? and wy cant the the manuel reset start , and wy is now fault codes and "glow" symbol back ?

Wednesday,14,August,2024,10:19:44:38398
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 24.7.0.0 (x64)
Data version: 20240715 DS356.3
www.Ross-Tech.com


VIN: WAUZZZ4G7JN070847   License Plate: ZBH510



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                Address 01: Engine       Labels: 059-907-401-V2.clb
Control Module Part Number: 4G0 907 589 F    HW: 4G0 907 589 B
  Component and/or Version: 3.0BTD EDC17  H23 0008
           Software Coding: 322A403A25760B030000
            Work Shop Code: WSC 40616 001 1048576
              ASAM Dataset: EV_ECM30BTD0114G0907589F 001008 (AU57)
                       ROD: EV_ECM30BTD0114G0907589F_001.rod
                      VCID: 374513578ED87A2E32-8062
2 Faults Found:

5188 - Particle Filter 
          P2463 00 [10101111] - Excessive Soot Accumulation
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 126748 km
                    Date: 2024.08.14
                    Time: 10:08:31

                    Engine RPM: 1368.00 /min
                    Normed load value: 26.3 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 76 °C
                    Intake air temperature: 27 °C
                    Ambient air pressure: 1010 mbar
                    Voltage terminal 30: 14.400 V
                    Unlearning counter according OBD: 40
                    P Flt Ld fac Ash Cor: 1.0000
                    Particul.filter diff.pressure: 13 hPa
                    Exh t Adap T Oxi Cat Ds: 203.6 °C
                    Exh t Adap TP Flt Ds: 193.2 °C
                    Current operating mode_2-Bits 0-7: 0
                    Current operating mode_2-Bits 0-7: 0
                    Current operating mode_2-Bits 0-7: 142
                    Current operating mode_2-Bits 0-7: 0

5189 - Particulate Trap Bank 1 
          P2002 00 [10101111] - Efficiency Below Threshold
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 126748 km
                    Date: 2024.08.14
                    Time: 10:08:31

                    Engine RPM: 1368.00 /min
                    Normed load value: 26.3 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 76 °C
                    Intake air temperature: 27 °C
                    Ambient air pressure: 1010 mbar
                    Voltage terminal 30: 14.400 V
                    Unlearning counter according OBD: 40
                    Ambient temperature: 20.5 °C
                    DPF: offset for differential pressure: -2 hPa
                    Particle filter: soot mass measured: 2.25 g
                    Particle filter: soot mass calculated: 26.10 g
                    Particle filter: kilometers since last regeneration: 5898 m
                    Particle filter field regeneration: cancel conditions-Bits 0-7: 0
                    Particle filter field regeneration: cancel conditions-Bits 0-7: 0


Readiness: 1 2 0 0 1 

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Address 01: DTCs cleared
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                Address 01: Engine  (4G0 907 589 F)

10:21:58
  IDE00427   Particle filter: difference pressure 13 hPa
  IDE00433   Particle filter: oil ash volume 0.00 l
  IDE00434   Particle filter: soot mass calculated 26.17 g
  IDE00435   Particle filter: soot mass measured 2.33 g

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Address 01: DTCs cleared

	
	



	
	

		

	

 

[SaVAGeSoot]

Are you meeting all prerequisites as per wiki page?

 

[Bengt_Salmose]

If it is the same for CVUA engine as BKS/BMK/BUN , Yes.
( after the first try fault codes comes back instantly )

​

 

[Bengt_Salmose]

Fault codes comes back instantly with engine not running .
If i clear them they disapere but if i check again they still are there ( without starting engine )

 

[Bengt_Salmose]

Resetting dif. pres. offset works but not resetting DPF learned values ( engine running or not ) "unknown error " . Worked this morning before test drive and try Manual DPF Regenerating.

 

[SaVAGeSoot]

If it is the same for CVUA engine as BKS/BMK/BUN , Yes.
( after the first try fault codes comes back instantly )

​

You have a UDS controller from what I'm seeing... why are you referencing the CAN controller wiki instead?

 

[SaVAGeSoot]

Resetting dif. pres. offset works but not resetting DPF learned values ( engine running or not ) "unknown error " . Worked this morning before test drive and try Manual DPF Regenerating.

What do you want to reset and why? You're not showing anything that needs to be reset

Particle filter: soot mass measured: 2.25 g
Particle filter: soot mass calculated: 26.10 g

 

[Crasher]

Which unit did you have cleaned, the one after the turbo or the one under the car?

 

[Bengt_Salmose]

The one under the car . It is a double DPF .

I found out how to reset the learned DPF values:

Engine off.
Reset fault codes.
Don´t check if there is any falult codes .
Reset the learned DPF values

 

[Crasher]

We have yet to have a problem with one of these and the info both on ETKA and ELSA is very confusing and conflicting, is the reductant injector in the cat after the turbo or the downpipe before the DPF?

 

[Bengt_Salmose]

The injector is in downpipe lower part

 

[Crasher]

I wonder if the unit upstream downstream after the turbo is restricted?

 

[Bengt_Salmose]

No I think I have good dif.pressure values .
Just couldn´t start an manual regeneration.
Have made a 160 km drive today . 1/3 Highway , 1/3 small roads and 1/3 town . 0,68 liter / 10km average fuel consumption . It is better than before DPF failure.
Havn´t checked if it has been an automatic regereneration yet.

 

[WhenweRSA]

I had this on a 1.6 tdi Polo. Regen just didnt want to be performed and I was at a loss as to what it was so went back to basics. The problem was found to be the car wasnt getting up to temperature properly (Polo didn't have a temp gauge on the dash so just wasn't something easily noticed) so in went a new thermostat/valve and hay presto, happy car doing a regen!