P226D 'Damaged or Substrate Missing' 2016 T6 Shuttle - Is the DPF for the bin?

[Robert Hallyburton]

Evening everyone,

My T6 was in for an issue relating to the EGR which ended up getting replaced. As part of the work completed the Garage recommend getting at DPF flush done at the same time by a third party. Vehcile back now but getting a P226D Fault code 'Damaged or Substrate Missing' which eventually brings the EML on

Does this mean the DPF is toast now and needs replaced or is it there anything else we should consider.

Thanks in advance

Robert

 

[manfrotto]

It is not necessarily a toast DPF, but could be that the sensors are a bit "confused" after the clean.
If you clear the fault code does it come back on?
Further diagnostics can be done by running continuous block map of the DPF sensor info to see what they are reporting.

 

[Robert Hallyburton]

It is not necessarily a toast DPF, but could be that the sensors are a bit "confused" after the clean.
If you clear the fault code does it come back on?
Further diagnostics can be done by running continuous block map of the DPF sensor info to see what they are reporting.

Yes, fault code comes back on.

 

[Howzat]

Dont you have to reset the DPF values after a clean or replacement? Maybe the ECU expects a high soot level but the sensor is contradicting that.

 

[mmi]

DPF flush done at the same time by a third party. Vehcile back now but getting a P226D Fault code 'Damaged or Substrate Missing' which eventually brings the EML on

Possibly the filter substrate was damaged?
Is the exhaust sooty now?


Would be interested to get a couple of engine blockmap files.

1) ignition ON, engine OFF (preferably cold engine)​

2) engine idling (preferably cold engine)​

3) hot engine idling (after a 20 (minimum) driving​

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How-to create a blockmap file:

Ignition ON
[VCDS]
[Applications]
[Controller Channel Map]
- Single Controller Address = 01
- Login or security access code: Leave blank
- Function: Measuring values
- Output: CSV file
[Go]

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The result files (.csv) are saved into directory C:\Ross-Tech\VCDS\Logs

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PS. Ideally would be nice to capture a log as below:

Post in thread '[T6_measured] Monitoring DPF regeneration, DPF condition, EGR operation'

6 Aug 2023

Indeed the particle sensor is registering something...

Did you also get any of the faults codes?

P226D00 - Particle filter damaged or substrate missing Intermittently
P24B100 - Particle sensor measurement electrode short-circuit to positive pole Intermittently
P24B000 - Particle sensor measurement electrode short-circuit to ground Intermittently

Zoomed in​

Well below the 10 minutes...

• mmi

• 

 

[DXX]

You could just put some smoke through it and see what comes out of the tail pipe, if it’s holed smoke will emit and it’s stuffed.

 

[mmi]

You could just put some smoke through it and see what comes out of the tail pipe, if it’s holed smoke will emit and it’s stuffed.

Particle size of the smoke?

Particle Size and Size Distribution

dieselnet.com

 

[DXX]

Particle size of the smoke?

Particle Size and Size Distribution

dieselnet.com

Not a scientific suggestion from myself more a quick option to see if it’s holed.