Audi A3 8V 110tdi DPF/P2002 issues

Rob78791

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Does anyone have any useful ideas please on what could be causing a regular P2002 (and occasional P471) code and associated EML. They can be reset and car drives fine, but come back daily usually after a stop and start. Have tried Millers in the tank and JML aerosol on the DPF but no change. Just been running VAG DPF (see attached) and not sure if anything on the screen is a problem or not? Screen shot taken after a 30 min run of mixed driving. Car used daily, done 69k and is 2014 plate CRKB engine. Probably do more short journeys than ideal hence why I’ve assumed a DPF problem. Next step is probably getting someone to have a more detailed look on VCDS or similar but just asking for any advice please?
 

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Does anyone have any useful ideas please on what could be causing a regular P2002 (and occasional P471) code and associated EML. They can be reset and car drives fine, but come back daily usually after a stop and start. Have tried Millers in the tank and JML aerosol on the DPF but no change. Just been running VAG DPF (see attached) and not sure if anything on the screen is a problem or not? Screen shot taken after a 30 min run of mixed driving. Car used daily, done 69k and is 2014 plate CRKB engine. Probably do more short journeys than ideal hence why I’ve assumed a DPF problem. Next step is probably getting someone to have a more detailed look on VCDS or similar but just asking for any advice please?
Having an absolute nightmare with mine at the moment mate. Just wondering if you ever got to the bottom of this issue?
 
Might just be the pressure sensor failing. That was the fault on my daughters golf and not the DPF itself.
 
Hi Guys
Seems to many ppl has same issues.. I have passed now 90K I had completely melted DPF pressure sensor I had to replace it...
Now I have still engine management light when I rev RPMs very high on 2nd or 3rd gear If I reset the fault with VCDS it goes away and if I drive normally it won't show error. So that means it is time to get whole car cleaned ah well money pit ... So I will get DPF clean , EGR valves clean, turbo clean, inlet manifold clean and injectors pipes clean..
 
I have the same problem if i throttle to hard i got and engine light.
I had an timing belt change and audi broke the dpf pressure sensor they change it with a new one and i got that problem now on hard throttle i bought also a used one with the same part number and year but the same problem
And also i programm it with OBDeleven.
OBDeleven data log

Date: 2022-08-21 12:32

VIN: WAUZZZ8V5FA142748
Car: Audi A3
Year: 2015
Body type: Sportback
Engine: CRLB
Mileage: 190452 KM

---------------------------------------------------------------
01 Engine

System description: R4 2.0l TDI
Software number: 04L906021AS
Software version: 9970
Hardware number: 04L907309A
Hardware version: H22
ODX name: EV_ECM20TDI01104L906021AS
ODX version: 004011
Long coding: 02190012030401082000

Trouble codes:
P047400 - Exhaust Pressure Sensor "A" Circuit Intermittent/Erratic
Intermittent
Date: 2022-08-02 05:45:37
Mileage: 190377 km
Priority: 2
Malfunction frequency counter: 1
Unlearning counter: 255
Engine speed: 2966.00 1/min
Normed load value: 95.3 %
Vehicle speed: 115 km/h
Coolant temperature: 91 °C
Intake air temperature: 109 °C
Ambient air pressure: 990 mbar
Voltage terminal 30: 14.180 V
Dynamic environmental data: 209628162F005714F5005610F1000115B8FFFF16250B5F114EFD68114F0246

Gesendet von meinem VOG-L29 mit Tapatalk
 
I have the same problem if i throttle to hard i got and engine light.
I had an timing belt change and audi broke the dpf pressure sensor they change it with a new one and i got that problem now on hard throttle i bought also a used one with the same part number and year but the same problem
And also i programm it with OBDeleven.
OBDeleven data log

Date: 2022-08-21 12:32

VIN: WAUZZZ8V5FA142748
Car: Audi A3
Year: 2015
Body type: Sportback
Engine: CRLB
Mileage: 190452 KM

---------------------------------------------------------------
01 Engine

System description: R4 2.0l TDI
Software number: 04L906021AS
Software version: 9970
Hardware number: 04L907309A
Hardware version: H22
ODX name: EV_ECM20TDI01104L906021AS
ODX version: 004011
Long coding: 02190012030401082000

Trouble codes:
P047400 - Exhaust Pressure Sensor "A" Circuit Intermittent/Erratic
Intermittent
Date: 2022-08-02 05:45:37
Mileage: 190377 km
Priority: 2
Malfunction frequency counter: 1
Unlearning counter: 255
Engine speed: 2966.00 1/min
Normed load value: 95.3 %
Vehicle speed: 115 km/h
Coolant temperature: 91 °C
Intake air temperature: 109 °C
Ambient air pressure: 990 mbar
Voltage terminal 30: 14.180 V
Dynamic environmental data: 209628162F005714F5005610F1000115B8FFFF16250B5F114EFD68114F0246

Gesendet von meinem VOG-L29 mit Tapatalk
Yeah get dpf clean but not that crap easy cheap enough £30 where they just stick little hose,that's nothing waste of of money. For proper cleaning they need to remove whole exhaust with dpf filter and blast it with water pressure washer. Remove EGR and clean it