Is my DPF stuffed?

   #1  

Crafty345

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Is my DPF stuffed?

Code:
Monday,20,August,2018,20:28:35:42630
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.2.1.2 (x64)
Data version: 20180518 DS287.1
www.Ross-Tech.com


VIN: WAUZZZ8T1AA026759   License Plate: 
Mileage: 126490km-78597mi   Repair Order:

Address 01: Engine (J623-CCWA)       Labels:| 059-907-401-V1.clb
   Part No SW: 8K2 907 401     HW: 8K1 907 401 A
   Component: 3.0TDI EDC17  H16 0006  
   Revision: 15H16---    
   Coding: 0114002C190F0128
   Shop #: WSC 19618 002 1048576
   ASAM Dataset: EV_ECM30TDI0118K2907401 001006
   ROD: EV_ECM30TDI0118K2907401.rod
   VCID: 6AE250938DD96F1499-803E

3 Faults Found:
5188 - Diesel Particle Filter 
          P2463 00 [036] - Excessive Soot Accumulation
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 3
                    Mileage: 126474 km
                    Date: 2018.08.20
                    Time: 19:45:07

                    Engine speed: 1747.50 /min
                    Normed load value: 54.1 %
                    Vehicle speed: 27 km/h
                    Coolant temperature: 46 °C
                    Intake air temperature: 16 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 13.660 V
                    Unlearning counter according OBD: 40
                    Crankshaft speed (RPM): 1653.5 /min
                    Vehicle speed: 28.54 km/h
                    Particle filter: soot mass measured: 32.14 g
                    Particle filter: soot mass calculated: 24.62 g
                    Particle filter: kilometers since last regeneration: 99955 m
                    P Flt Rgn st Intr-Bits 0-7: 00000000 
                    P Flt Rgn st Intr-Bits 0-7: 00000000 
                    Particle filter: time since last regeneration: 0 s

5162 - Diesel Particle Filter; Differential Pressure Sensor 
          P2453 00 [229] - Implausible Signal
          MIL ON - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Mileage: 126493 km
                    Date: 2018.08.20
                    Time: 20:04:09

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 91 °C
                    Intake air temperature: 19 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 12.720 V
                    Unlearning counter according OBD: 40
                    Crankshaft speed (RPM): 0.0 /min
                    Vehicle speed: 0.00 km/h
                    Particle filter: difference pressure: 377 hPa
                    Intake air temperature: 11.0 °C
                    Exhaust gas temp.after pre-catalyst: 180.0 °C
                    Particle filter: offset for differential press.: 17 hPa
                    Exhaust gas vol.flow particulate filter: 0.0 m³/h

5189 - Particulate Trap Bank 1 
          P2002 00 [036] - Efficiency Below Threshold
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 3
                    Mileage: 126474 km
                    Date: 2018.08.20
                    Time: 19:45:07

                    Engine speed: 1747.50 /min
                    Normed load value: 54.1 %
                    Vehicle speed: 27 km/h
                    Coolant temperature: 46 °C
                    Intake air temperature: 16 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 13.660 V
                    Unlearning counter according OBD: 40
                    Crankshaft speed (RPM): 1653.5 /min
                    Vehicle speed: 28.54 km/h
                    Particle filter: difference pressure: 765 hPa
                    Exh t Adap T Oxi Cat Ds: 151.3 °C
                    Exhaust gas temperature before particulate filter: 140.0 °C
                    Exhaust gas vol.flow particulate filter: 155.1 m³/h
                    Field regeneration status-Bits 0-7: 00000000 
                    Field regeneration status-Bits 0-7: 00000000 
                    Field regeneration status-Bits 0-7: 00000000 
                    Field regeneration status-Bits 0-7: 00000000 

Readiness: 0 0 0 0 0
 
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   #2  

iichel

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Could be, or the sensor is simply broken, the G505.

Could you have a look at the measurement value blocks or advanced measurement values, for your DPF differential pressure values?
Have a look at the engine-off values, there should be hardly any differential pressure, if any at all.
Then you could have a look at the engine idling, and see if these values make sense.
 
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Uwe

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Things to look at:

IDE00427 -- Particle filter: difference pressure
What does it show with the engine not running?
What does it show with the engine at idle?

And then these (doesn't matter if the engine is running or not).
IDE00433 -- Particle filter: oil ash volume
IDE00434 -- Particle filter: soot mass calculated
IDE00435 -- Particle filter: soot mass measured
IDE00436 -- Particle filter: kilometers since last regeneration


-Uwe-
 
   #4  

Jack@European_Parts

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[h=2]Is my DPF stuffed?[/h]
Most likely & like a teddy bear that has been left for dead.......... :rolleyes:

It would be advised to clean the DPF, with all conduits or sensors & as regular maintenance in the exhaust, start with a chemical clean.

2.gif
 
   #5  

Crafty345

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Tuesday,21,August,2018,17:57:42:42630
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.2.1.2 (x64)
Data version: 20180518 DS287.1
www.Ross-Tech.com


VIN: WAUZZZ8T1AA026759 License Plate:
Mileage: 126490km-78597mi Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 01: Engine (8K2 907 401 )

17:57:28
IDE00427 Particle filter: difference pressure 0 hPa
IDE00428 Particle filter: offset for differential press. 21 hPa
IDE00433 Particle filter: oil ash volume 0.30 l
IDE00434 Particle filter: soot mass calculated 15.85 g
IDE00435 Particle filter: soot mass measured 54.21 g
IDE00436 Particle filter: kilometers since last regeneration 138508 m
 
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Crafty345

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And with the engine running


Tuesday,21,August,2018,18:18:29:42630
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.2.1.2 (x64)
Data version: 20180518 DS287.1
www.Ross-Tech.com


VIN: WAUZZZ8T1AA026759 License Plate:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 01: Engine (8K2 907 401 )

18:18:25
IDE00427 Particle filter: difference pressure 4 hPa
IDE00428 Particle filter: offset for differential press. 21 hPa
IDE00432 Particle filter: time since last regeneration 11119 s
IDE00433 Particle filter: oil ash volume 0.30 l
IDE00434 Particle filter: soot mass calculated 16.00 g
IDE00435 Particle filter: soot mass measured 54.21 g
IDE00436 Particle filter: kilometers since last regeneration 138508 m
 
   #8  

Uwe

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138 km and ~3 hours since last regeneration. Average speed ~45 km/h.

Vehicle has less than 80,000 miles on it. Seems like it shouldn't really need DPF remediation just yet.

I wonder what would happen if he just took this thing out on the highway at 120-130 km/h for a few hours?

Does 21 hPa of offset for the differential pressure sensor strike anyone else as kinda high?

-Uwe-
 
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Jack@European_Parts

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Uwe it is high.....
OP:
It would be a good idea to try chemical cleaning first & so the DPF & CAT can be observed visually during regen with this level versus going on a road trip.
After doing a chemical removal and verifying the PSI sensors work while exhaust has no obstruction using an external vacuum & PSI gauge to further check mechanicals and not rely solely on OBD data.

Safety first!
"Only you can prevent DPF fires!"
 
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Crafty345

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138 km and ~3 hours since last regeneration. Average speed ~45 km/h.

Vehicle has less than 80,000 miles on it. Seems like it shouldn't really need DPF remediation just yet.

I wonder what would happen if he just took this thing out on the highway at 120-130 km/h for a few hours?

Does 21 hPa of offset for the differential pressure sensor strike anyone else as kinda high?

-Uwe-

Only one problem with that here in the land down under - max speed limit is 110 km/h, could put the trans in sport mode and hold it in 5th gear to keep the revs up
 
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Crafty345

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Uwe it is high.....
OP:
It would be a good idea to try chemical cleaning first & so the DPF & CAT can be observed visually during regen with this level versus going on a road trip.
After doing a chemical removal and verifying the PSI sensors work while exhaust has no obstruction using an external vacuum & PSI gauge to further check mechanicals and not rely solely on OBD data.

Safety first!
"Only you can prevent DPF fires!"

So how does one do a "chemical clean"?
 
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Crafty345

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I just went and plugged my VCDS in again, (engine off) cleared the codes and within two seconds the fault light came back on, this, I hope, tells me that it's an electrical problem (sensor) that should be a cheap fix, after it's fitted I will take the car for a long drive and keep it in 5th gear so it can do a decent DPF burn.
 
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Uwe

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Jack@European_Parts

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So how does one do a "chemical clean"?

You could search Youtube on DPF cleaners and methods to extract, right?

I just went and plugged my VCDS in again, (engine off) cleared the codes and within two seconds the fault light came back on, this, I hope, tells me that it's an electrical problem (sensor) that should be a cheap fix, after it's fitted I will take the car for a long drive and keep it in 5th gear so it can do a decent DPF burn.


You could select a lower gear which revs the engine higher & to avoid speed limit issues to address the law and safety now couldn't you?


 
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Crafty345

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Well I just replaced the DPF differential pressure sensor and cleared the codes, however two codes came back - Diesel particulate filter P2463 (excessive soot accumulation) and Particulate filter trap bank 1 P2002 (efficiency below threshold), I'm hoping that I can now take it for a drive have the car do a regen and all should be good.
 
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Crafty345

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Tried to do a service DPF regen and kept getting an error, so I reset the learned values of the particulate filter and the difference pressure sensor and all good now.
 
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138 km and ~3 hours since last regeneration. Average speed ~45 km/h.

Vehicle has less than 80,000 miles on it. Seems like it shouldn't really need DPF remediation just yet.

I wonder what would happen if he just took this thing out on the highway at 120-130 km/h for a few hours?

Does 21 hPa of offset for the differential pressure sensor strike anyone else as kinda high?

-Uwe-

No it sounds a lot but converted to psi = 0.301
 
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Uwe

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No it sounds a lot but converted to psi = 0.301
If I understand it correctly, this value is a discrepancy in the readings between the two sides of the sensor that the ECU learns and compensates for. Although a three tenths of a PSI doesn't sound like much, I still wonder if there should be that much of a difference. It would be interesting to know what this value is after the OP has told the ECU to re-learn the sensor and has driven the vehicle some.

-Uwe-
 
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Crafty345

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If I understand it correctly, this value is a discrepancy in the readings between the two sides of the sensor that the ECU learns and compensates for. Although a three tenths of a PSI doesn't sound like much, I still wonder if there should be that much of a difference. It would be interesting to know what this value is after the OP has told the ECU to re-learn the sensor and has driven the vehicle some.

-Uwe-

I'll post the readings this weekend after I have done my usual driving for the week
 
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