2 x Faults after DPF Clean.

t6boy

Member
Hi.
Following on from this thread.

Did a DPF in 'Situ' clean yesterday. Did a forced regen after DPF.

Check light and Limp mode gone. Took it for a drive all good.
Did a quick scan last night and had a EGR FLOW error.

Did a scan this morning at COLD.

Monday,23,June,2025,01:43:24:27490
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 25.3.1.2 (x64) HEX-V2 CB: 0.4671.5
Data version: 20250604 DS365.0
www.Ross-Tech.com


VIN: WV1ZZZ7HZJH069108 License Plate:
Mileage: 109520km-68052mi Repair Order:



--------------------------------------------------------------------------------
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Chassis Type: 7H-VN75 (7E0)
Scan: 01 02 03 04 08 09 10 13 15 17 19 25 5F 61 69 0B

VIN: WV1ZZZ7HZJH069108 Mileage: 109520km-68052miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
13-Auto Dist. Reg -- Status: OK 0000
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
61-Battery Regul. -- Status: OK 0000
69-Trailer -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (2D2D2-CXEB) Labels:. 04L-907-309-V2.clb
Part No SW: 04L 906 056 KQ HW: 04L 907 445 A
Component: R4 2.0l BTD H03 3775
Revision: 23101001
Coding: 00254014432401080000
Shop #: WSC 02739 790 50316
ASAM Dataset: EV_ECM20BTD03004L906056KQ 004004
ROD: EV_ECM20BTD03004L906056KN_004.rod
VCID: 0652499078A19B1AB55-8052
VINID: 9E606AAAA1D8A9A60018904020858E8D84

2 Faults Found:
32121 - Particulate Matter Sensor
P24B0 00 [01100100] - Short to GND
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 109500 km
Date: 2083.01.07
Time: 06:15:19

Engine speed: 2086.25 /min
Normed load value: 52.5 %
Vehicle speed: 78 km/h
Coolant temperature: 90 °C
Intake air temperature: 22 °C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 13.078 V
Unlearning counter according OBD: 40
Air mass at air mass meter 1: 226.8 kg/h
Standardized air flow ratio: 1.015 counts
Exhaust recirc.valve 1 bank 1: posit.feedback - Actual value: -79.17 %
Throttl.valve adapt. 1 bank 1: posit feedback - Actual value: 38.75 %
Charge air pressure: specified value: 1.634 bar
Absolute intake pressure: 168 kPa abs
Mean injection quantity: 22 mg/stroke
Index of current engine mode: 13
Index of next requested engine mode: 13
Index of engine target mode: 13

23871 - EGR System
P0401 00 [01100100] - Insufficient Flow
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 109496 km
Date: 2083.01.07
Time: 05:59:22

Engine speed: 1499.25 /min
Normed load value: 23.5 %
Vehicle speed: 0 km/h
Coolant temperature: 89 °C
Intake air temperature: 37 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 13.031 V
Unlearning counter according OBD: 40
EGR travel diagnosis: strongly increased NOx emission: 0.00 kg/h
Exhaust recirc.valve 1 bank 1: posit.feedback - Actual value: -83.06 %
EGR travel diagnosis: marginally increased NOx emission: -37.40 kg/h
Mass airflow sensor 1 bank 1 airflow: raw value: 523.1 mg/stroke
Throttl.valve adapt. 1 bank 1: posit feedback - Actual value: 74.71 %
Charge press. ctrl deviation after throttle valve bank 1-Pressure_16_signed_10_mbar: -32.9 mbar
O2 sens. 1 bank 1 upstrm oxi cat: raw value: 5.644 counts

Readiness: N/A



PS: are those values taken from Memory ie: a snapshot at a point in time? Or live?

As the air intake, RPM etc, etc are all wrong. As the scan was done after Vehicle sat overnight outside ie: 9 degrees C temp. Current Ambient temp is 15c and scan was done 5 seconds after starting Vehicle.

Thanks
 
Freeze frame data,

So a historic record of the intermittent fault code that's occurred - one times each..

Log the codes, as you have done then clear the codes then go for another test drive.

....

Out of interest, what was the in-sit clean?

Chemical forced in via the sensor Port?
 
Yeah. Figured after I posted that's it's a "SNAPSHOT" at the time of the fault.

I just used the can of JLM Cleaner, in through the O2 port.
 
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