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Thread: Dpf issues

  1. #1
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    Dpf issues

    Soot mass calculated before regen was 11.6g, 0.35g after, but soot mass measured was 24.6g before regen, 32.8g after?

    Dpf differential pressure is 1hPa ignition on engine off, 41hPa at idle.
    Offset is 1hPa.

    Normal or not.

    Had blocked pressure sensor pipe on dpf week ago..... sensor G450 was checked and ok then....

  2. #2
    VCDS Distributor Mike@Gendan's Avatar
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    First things first, please post a full Auto-Scan with the latest version of VCDS.
    It'll show the details of the vehicle and add some context.
    Apparently I should put something witty or profound in here.....

  3. #3
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    Scan from last weekend, yes i know vcds needs an update, havd done tgst now


    Saturday,07,September,2019,07:53:24:16358 VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86 VCDS Version: 19.6.0.2 Data version: 20190529 DS308.0 www.Ross-Tech.com VIN: WV1ZZZ7HZBH070165 License Plate: ND60RJO Mileage: 275630km-171268mi Repair Order: -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Chassis Type: 7H-VN75 (6N0) Scan: 01 02 03 04 08 09 15 17 19 22 25 56 69 0B VIN: WV1ZZZ7HZBH070165 Mileage: 275630km-171268miles 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: Malfunction 0010 15-Airbags -- Status: OK 0000 17-Instruments -- Status: OK 0000 19-CAN Gateway -- Status: OK 0000 22-AWD -- Status: OK 0000 25-Immobilizer -- Status: OK 0000 56-Radio -- Status: OK 0000 69-Trailer -- Status: OK 0000 ------------------------------------------------------------------------------- Address 01: Engine (J623-CFCA) Labels:. 03L-906-022-CFC.clb Part No SW: 03L 906 022 JE HW: 03L 907 309 H Component: R4 2,0L EDC H34 9970 Revision: 22H34--- Serial number: 00000000000000 Coding: 01254012231600080000 Shop #: WSC 81903 210 00000 ASAM Dataset: EV_ECM20BTD01103L906022JE 002009 ROD: EV_ECM20BTD01103L906022JD_002.rod VCID: 71E9A2EDA096FCC76E-8024 1 Fault Found: 11895 - Turbo / Supercharger B P02CB 00 [101] - Pressure too Low Not Confirmed - Tested Since Memory Clear Freeze Frame: Fault Status: 00000001 Fault Priority: 2 Fault Frequency: 1 Mileage: 275624 km Date: 2019.09.06 Time: 13:40:49 Engine speed: 2638.00 /min Normed load value: 89.4 % Vehicle speed: 74 km/h Coolant temperature: 98 C Intake air temperature: 35 C Ambient air pressure: 1010 mbar Voltage terminal 30: 13.780 V Unlearning counter according OBD: 40 Charge air pressure specified value: 2532 hPa Charge air pressure: actual value: 2427.6 hPa Air mass: actual value (mg/stroke): 1033.6 mg/stroke Air cleaner degree of soiling: 18.27 % Throttle valve adapter: actual value: 64.50 % Bypass valve f high press turboch turbine inlet: actual value: 98.01 % Mean injection quantity: 52.89 mg/stroke Readiness: 0 0 0 0 0 ------------------------------------------------------------------------------- Address 02: Auto Trans (J743) Labels:. 0BH-927-711.clb Part No SW: 0BT 300 011 Q HW: 0BH 927 711 C Component: DSG DQ500-7A H08 2258 Revision: 00H08V01 Coding: 0014 Shop #: WSC 00000 000 00000 ASAM Dataset: EV_TCMDQ500021 001001 ROD: EV_TCMDQ500021_VW36.rod VCID: 3C7743D9B75441AF8D-8068 No fault code found. ------------------------------------------------------------------------------- Address 03: ABS Brakes (-----) Labels: 7E0-907-37x-MK25AXT.clb Part No SW: 7E0 907 379 G HW: 7E0 907 379 E Component: ESP MK25A XT H43 0105 Revision: 00H43001 Coding: 508764AD99AB0A9526A39977A96316 Shop #: WSC 02736 790 49152 VCID: 366351F181789BFF7B-8062 No fault code found. ------------------------------------------------------------------------------- Address 08: Auto HVAC (J301) Labels:| 7E5-907-047.clb Part No SW: 7E5 907 047 AL HW: 7E5 907 047 AL Component: Climatic-T5 H11 0203 Revision: 00005001 Coding: 0000000002 Shop #: WSC 02737 790 50316 ASAM Dataset: EV_ClimaticT5 A01003 ROD: EV_ClimaT5Basis.rod VCID: 79F99ACDF8E6B487D6-802C No fault code found. ------------------------------------------------------------------------------- Address 09: Cent. Elect. (J519) Labels:. 7H0-937-08x-09.clb Part No SW: 7H0 937 087 F HW: 7H0 937 087 Component: BCM T5GP H+4 H47 0230 Revision: BO047001 Serial number: 0396 321100593 Coding: A0A0393A0E212013002008102C2B8C540000430F6004400030 0000000000 Shop #: WSC 02734 790 00000 VCID: 377D5CF5867262F760-8062 Subsystem 1 - Part No SW: 7E0 959 801 C HW: 7E0 959 801 C Labels: 7E0-959-80X-V1.CLB Component: J386__TSG_FT 003 3311 Serial number: -------------------- Coding: 050000 Subsystem 2 - Part No SW: 7E0 959 802 C HW: 7E0 959 802 C Labels: 7E0-959-80X-V1.CLB Component: J387__TSG_BT 003 3311 Serial number: -------------------- Coding: 040000 1 Fault Found: 03303 - Response Closing Status of Rear Left Door 008 - Implausible Signal - Intermittent Freeze Frame: Fault Status: 00101000 Fault Priority: 2 Fault Frequency: 3 Reset counter: 27 Mileage: 275632 km Time Indication: 0 Date: 2014.01.27 Time: 21:28:05 ------------------------------------------------------------------------------- Address 15: Airbags (J234) Labels:| 5K0-959-655.clb Part No SW: 7E0 959 655 B HW: 7E0 959 655 B Component: VW10Airbag009 H06 0013 Revision: -------- Serial number: 003HL002H9WF Coding: 000000000000000000000000000000003039 Shop #: WSC 02734 790 50316 ASAM Dataset: EV_AirbaVW10BPAVN750 A01026 ROD: EV_AirbaVW10BPAVN750_VW12.rod VCID: 356156FD947E90E772-8060 No fault code found. ------------------------------------------------------------------------------- Address 17: Instruments (J285) Labels:| 5K0-920-xxx-17.clb-SRI1 Part No SW: 7E0 920 960 CX HW: 7E0 920 960 CX Component: KOMBI H04 0204 Serial number: 00000000000000 Coding: 460300 Shop #: WSC 51034 001 1048576 ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04086 ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod VCID: 0109F22D9036EC479E-8054 No fault code found. ------------------------------------------------------------------------------- Address 19: CAN Gateway (J533) Labels:. 6N0-909-901-6R.clb Part No SW: 6N0 909 901 HW: 7H0 937 087 Component: GW-K-CAN TP20 0230 Coding: 042300 Shop #: WSC 02734 790 00000 VCID: 70EFA7E9A39CF5CF61-8024 No fault code found. ------------------------------------------------------------------------------- Address 22: AWD Labels: 0AY-907-554-V1.clb Part No SW: 09N 907 554 B HW: 09N 907 554 B Component: Haldex 4Motion 6008 Coding: 0000002 Shop #: WSC 02748 790 00000 VCID: 377D5CF5467262F760-8062 No fault code found. ------------------------------------------------------------------------------- Address 25: Immobilizer (J334) Labels:| 5K0-920-xxx-25.clb Part No SW: 5K0 953 234 HW: 5K0 953 234 Component: IMMO H04 0204 Serial number: 00000000000000 Coding: 000000 Shop #: WSC 00000 000 00000 ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03008 ROD: EV_Immo_UDS_VDD_RM09.rod VCID: 6ADBB5818D400F1F2F-803E No fault code found. ------------------------------------------------------------------------------- Address 56: Radio (J503) Labels:. 5M0-035-1xx-56.clb Part No SW: 5M0 035 186 AA HW: 5M0 035 186 AA Component: Radio RCD310 016 0049 Revision: 01000000 Serial number: VWZ1Z2K8556967 Coding: 0500020002 Shop #: WSC 02734 790 00000 VCID: 6BD5B0858ABA161754-803E No fault code found. ------------------------------------------------------------------------------- Address 69: Trailer (J345) Labels:. 1K0-907-383-V2.clb Part No SW: 1K0 907 383 F HW: 1K0 907 383 F Component: Anhaenger H09 0100 Revision: 3A001001 Serial number: 00000137824167 Coding: 410D000100000000 Shop #: WSC 02736 790 00000 VCID: 306F67E9631CB5CF21-8064 No fault code found. End-------------------------(Elapsed Time: 03:05)--------------------------

  4. #4
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    A DPF won't normally regen if you have Engine fault codes. If you fix your engine fault, then the DPF should be able to regen and reduce the measured soot mass.
    Otherwise, I suspect there is still a problem with the DPF pressure sensor and/or connection pipes.

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  6. #5
    Benevolent Dictator Uwe's Avatar
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    The scan posted above is an illegible mess. I'm not sure what program(s) you passed that through that stripped the Newlines and white space. Let's see if we can make some sense of the ECU data:

    Code:
    Address 01: Engine (J623-CFCA) Labels:. 03L-906-022-CFC.clb 
        Part No SW: 03L 906 022 JE    HW: 03L 907 309 H 
        Component: R4 2,0L EDC H34 9970 Revision: 22H34--- 
        Serial number: 00000000000000 
        Coding: 01254012231600080000 
        Shop #: WSC 81903 210 00000 
        ASAM Dataset: EV_ECM20BTD01103L906022JE 002009 
        ROD: EV_ECM20BTD01103L906022JD_002.rod 
        VCID: 71E9A2EDA096FCC76E-8024 
    
    1 Fault Found: 
    
    11895 - Turbo / Supercharger B 
                P02CB 00 [101] - Pressure too Low Not Confirmed - Tested Since Memory Clear 
                    Freeze Frame: 
                    Fault Status: 00000001 
                    Fault Priority: 2 
                    Fault Frequency: 1 
                    Mileage: 275624 km 
                    Date: 2019.09.06 
                    Time: 13:40:49 
                    Engine speed: 2638.00 /min 
                    Normed load value: 89.4 % 
                    Vehicle speed: 74 km/h 
                    Coolant temperature: 98 C 
                    Intake air temperature: 35 C 
                    Ambient air pressure: 1010 mbar 
                    Voltage terminal 30: 13.780 V 
                    Unlearning counter according OBD: 40 
                    Charge air pressure specified value: 2532 hPa 
                    Charge air pressure: actual value: 2427.6 hPa 
                    Air mass: actual value (mg/stroke): 1033.6 mg/stroke 
                    Air cleaner degree of soiling: 18.27 % 
                    Throttle valve adapter: actual value: 64.50 %
                    Bypass valve f high press turboch turbine inlet: actual value: 98.01 %
                    Mean injection quantity: 52.89 mg/stroke 
    
    Readiness: 0 0 0 0 0
    41 hPa at idle strikes me as quite high.

    -Uwe-

    PS: Got the OP verified. Moving to Car Repair Support.
    Last edited by Uwe; 09-13-2019 at 10:44 AM.
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  7. Likes grant@gendan liked this post
  8. #6
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    P02CB00 fault code, limp mode

    Transporter 2011, 2.0 biTdi 4motion CFCA engine. 171000 miles.

    Had dpf light and coil light come on whilst driving to airport (150miles). Limp mode.

    Had vw roadside assistance come out, ws blocked dpf filter ( and dpf pressure differential sensor pipe), turbo pressure too low. Fault codes p02cb00 and P246300.

    He cleared pipe, tested G450 sensor, manual regen of dpf. Has new MAP sensor.

    It cleared the dpf fault but the low boost still returns after about 1/2 a mile.

    Full auto scan

    Code:
    Saturday,07,September,2019,07:53:24:16358
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86
    VCDS Version: 19.6.0.2
    Data version: 20190529 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WV1ZZZ7HZBH070165   License Plate: ND60RJO
    Mileage: 275630km-171268mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 7H-VN75 (6N0)
    Scan: 01 02 03 04 08 09 15 17 19 22 25 56 69 0B
    
    VIN: WV1ZZZ7HZBH070165   Mileage: 275630km-171268miles
    
    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: Malfunction 0010
    15-Airbags -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    22-AWD -- Status: OK 0000
    25-Immobilizer -- Status: OK 0000
    56-Radio -- Status: OK 0000
    69-Trailer -- Status: OK 0000
     
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CFCA)       Labels:. 03L-906-022-CFC.clb
       Part No SW: 03L 906 022 JE    HW: 03L 907 309 H
       Component: R4 2,0L EDC   H34 9970  
       Revision: 22H34---    Serial number: 00000000000000
       Coding: 01254012231600080000
       Shop #: WSC 81903 210 00000
       ASAM Dataset: EV_ECM20BTD01103L906022JE 002009
       ROD: EV_ECM20BTD01103L906022JD_002.rod
       VCID: 71E9A2EDA096FCC76E-8024
    
    1 Fault Found:
    11895 - Turbo / Supercharger B 
              P02CB 00 [101] - Pressure too Low
              Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 275624 km
                        Date: 2019.09.06
                        Time: 13:40:49
    
                        Engine speed: 2638.00 /min
                        Normed load value: 89.4 %
                        Vehicle speed: 74 km/h
                        Coolant temperature: 98 C
                        Intake air temperature: 35 C
                        Ambient air pressure: 1010 mbar
                        Voltage terminal 30: 13.780 V
                        Unlearning counter according OBD: 40
                        Charge air pressure specified value: 2532 hPa
                        Charge air pressure: actual value: 2427.6 hPa
                        Air mass: actual value (mg/stroke): 1033.6 mg/stroke
                        Air cleaner degree of soiling: 18.27 %
                        Throttle valve adapter: actual value: 64.50 %
                        Bypass valve f high press turboch turbine inlet: actual value: 98.01 %
                        Mean injection quantity: 52.89 mg/stroke
    
    Readiness: 0 0 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
       Part No SW: 0BT 300 011 Q    HW: 0BH 927 711 C
       Component: DSG DQ500-7A  H08 2258  
       Revision: 00H08V01    
       Coding: 0014
       Shop #: WSC 00000 000 00000
       ASAM Dataset: EV_TCMDQ500021 001001
       ROD: EV_TCMDQ500021_VW36.rod
       VCID: 3C7743D9B75441AF8D-8068
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (-----)       Labels: 7E0-907-37x-MK25AXT.clb
       Part No SW: 7E0 907 379 G    HW: 7E0 907 379 E
       Component: ESP MK25A XT  H43 0105  
       Revision: 00H43001    
       Coding: 508764AD99AB0A9526A39977A96316
       Shop #: WSC 02736 790 49152
       VCID: 366351F181789BFF7B-8062
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J301)       Labels:| 7E5-907-047.clb
       Part No SW: 7E5 907 047 AL    HW: 7E5 907 047 AL
       Component: Climatic-T5   H11 0203  
       Revision: 00005001    
       Coding: 0000000002
       Shop #: WSC 02737 790 50316
       ASAM Dataset: EV_ClimaticT5 A01003
       ROD: EV_ClimaT5Basis.rod
       VCID: 79F99ACDF8E6B487D6-802C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 7H0-937-08x-09.clb
       Part No SW: 7H0 937 087 F    HW: 7H0 937 087 
       Component: BCM T5GP H+4  H47 0230  
       Revision: BO047001    Serial number: 0396 321100593
       Coding: A0A0393A0E212013002008102C2B8C540000430F60044000300000000000
       Shop #: WSC 02734 790 00000
       VCID: 377D5CF5867262F760-8062
    
       Subsystem 1 - Part No SW: 7E0 959 801 C    HW: 7E0 959 801 C  Labels: 7E0-959-80X-V1.CLB
       Component: J386__TSG_FT  003 3311 
       Serial number: --------------------
       Coding: 050000
    
       Subsystem 2 - Part No SW: 7E0 959 802 C    HW: 7E0 959 802 C  Labels: 7E0-959-80X-V1.CLB
       Component: J387__TSG_BT  003 3311 
       Serial number: --------------------
       Coding: 040000
    
    1 Fault Found:
    03303 - Response Closing Status of Rear Left Door 
                008 - Implausible Signal - Intermittent
                 Freeze Frame:
                        Fault Status: 00101000
                        Fault Priority: 2
                        Fault Frequency: 3
                        Reset counter: 27
                        Mileage: 275632 km
                        Time Indication: 0
                        Date: 2014.01.27
                        Time: 21:28:05
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
       Part No SW: 7E0 959 655 B    HW: 7E0 959 655 B
       Component: VW10Airbag009 H06 0013  
       Revision: --------    Serial number: 003HL002H9WF
       Coding: 000000000000000000000000000000003039
       Shop #: WSC 02734 790 50316
       ASAM Dataset: EV_AirbaVW10BPAVN750 A01026
       ROD: EV_AirbaVW10BPAVN750_VW12.rod
       VCID: 356156FD947E90E772-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
       Part No SW: 7E0 920 960 CX    HW: 7E0 920 960 CX
       Component: KOMBI         H04 0204  
       Serial number: 00000000000000
       Coding: 460300
       Shop #: WSC 51034 001 1048576
       ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04086
       ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
       VCID: 0109F22D9036EC479E-8054
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway (J533)       Labels:. 6N0-909-901-6R.clb
       Part No SW: 6N0 909 901     HW: 7H0 937 087 
       Component: GW-K-CAN TP20 0230  
       Coding: 042300
       Shop #: WSC 02734 790 00000
       VCID: 70EFA7E9A39CF5CF61-8024
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 22: AWD        Labels: 0AY-907-554-V1.clb
       Part No SW: 09N 907 554 B    HW: 09N 907 554 B
       Component: Haldex 4Motion      6008  
       Coding: 0000002
       Shop #: WSC 02748 790 00000
       VCID: 377D5CF5467262F760-8062
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
       Part No SW: 5K0 953 234     HW: 5K0 953 234 
       Component: IMMO          H04 0204  
       Serial number: 00000000000000
       Coding: 000000
       Shop #: WSC 00000 000 00000
       ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03008
       ROD: EV_Immo_UDS_VDD_RM09.rod
       VCID: 6ADBB5818D400F1F2F-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
       Part No SW: 5M0 035 186 AA    HW: 5M0 035 186 AA
       Component: Radio RCD310  016 0049  
       Revision: 01000000    Serial number: VWZ1Z2K8556967
       Coding: 0500020002
       Shop #: WSC 02734 790 00000
       VCID: 6BD5B0858ABA161754-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 69: Trailer (J345)       Labels:. 1K0-907-383-V2.clb
       Part No SW: 1K0 907 383 F    HW: 1K0 907 383 F
       Component: Anhaenger     H09 0100  
       Revision: 3A001001    Serial number: 00000137824167
       Coding: 410D000100000000
       Shop #: WSC 02736 790 00000
       VCID: 306F67E9631CB5CF21-8064
    
    No fault code found.
    
    End-------------------------(Elapsed Time: 03:05)--------------------------
    scan of fault code

    Code:
    Saturday,07,September,2019,12:45:54:16358
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86
    VCDS Version: 19.6.0.2
    Data version: 20190529 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WV1ZZZ7HZBH070165   License Plate: ND60RJO
    
    
                    Address 01: Engine       Labels: 03L-906-022-CFC.clb
    Control Module Part Number: 03L 906 022 JE    HW: 03L 907 309 H
      Component and/or Version: R4 2,0L EDC   H34 9970
               Software Coding: 01254012231600080000
                Work Shop Code: WSC 81903 210 00000
                  ASAM Dataset: EV_ECM20BTD01103L906022JE 002009 (VN75)
                           ROD: EV_ECM20BTD01103L906022JD_002.rod
                          VCID: 71E9A2EDA096FCC76E-8024
    1 Fault Found:
    
    11895 - Turbo / Supercharger B 
              P02CB 00 [167] - Pressure too Low
              MIL ON - Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 275633 km
                        Date: 2019.09.07
                        Time: 11:11:59
    
                        Engine speed: 2601.50 /min
                        Normed load value: 77.6 %
                        Vehicle speed: 67 km/h
                        Coolant temperature: 51 C
                        Intake air temperature: 31 C
                        Ambient air pressure: 1010 mbar
                        Voltage terminal 30: 14.180 V
                        Unlearning counter according OBD: 40
                        Charge air pressure specified value: 2625 hPa
                        Charge air pressure: actual value: 2363.2 hPa
                        Air mass: actual value (mg/stroke): 1044.7 mg/stroke
                        Air cleaner degree of soiling: 18.08 %
                        Throttle valve adapter: actual value: 99.62 %
                        Bypass valve f high press turboch turbine inlet: actual value: 99.08 %
                        Mean injection quantity: 44.33 mg/stroke
    
    
    Readiness: N/A
    Was thinking it could be clogged up wastegate with soot or issue with wastegate actuator?

    I have checked both actuators move from end to end/hold a vacuum using hand vacuum pump.

    Whats your thinkings?

  9. #7
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    I have since updated vcds software to latest version.

  10. #8
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    Sorry for the messy scan, had copied and pasted from my other thread as using phone and scan was saved on laptop.

  11. #9
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    Quote Originally Posted by grant@gendan View Post
    A DPF won't normally regen if you have Engine fault codes. If you fix your engine fault, then the DPF should be able to regen and reduce the measured soot mass.
    Otherwise, I suspect there is still a problem with the DPF pressure sensor and/or connection pipes.
    Having problems finding the cause of the turbocharger 'b' boost pressure too low fault code. Any ideas?

    Is there anyway to test the dpf pressure sensor G450? Volkswagen did test it last week and seemed ok???

    Will recheck pipework to sensor for blockages/soot build up again.

  12. #10
    Verified VCDS User PetrolDave's Avatar
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    Quote Originally Posted by H-bus guy View Post
    Is there anyway to test the dpf pressure sensor G450? Volkswagen did test it last week and seemed ok??
    How did they test it, did they apply pressure and check for valid readings?

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