G450 - acceptable pressure difference

   #1  

kuebk

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Hello,

What is acceptable pressure difference read by G450? By acceptable I mean: ECU not getting errors about insufficent flow and the car rides properly.

Thanks.
 
   #2  

Dana

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Is the exhaust system or engine controller modified or are you just looking for baseline information?

If this is baseline related that would depend on the vehicle in addition to the condition of downstream emissions control devices IMO. Assuming this vehicle is not modified (or broken) I would take a guess at live reading in the 1 to 10 mbar range but you may want to post the scan and a control module map at idle. We may have something similar here already Reference Scans and Maps of Non-Broken Cars
 
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   #3  

kuebk

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Sorry, I didn't put enough details in my last post.

Conditions:
- ECU is stock
- Exhaust is stock
- A3 2.0TDI CBBB

You are right, I'm getting 3-10 mbar reading at idle and IMO this is ok. What I would like to know is how high the pressure difference can be before the problems begin.
By problems I mean:
- the car is sluggish
- errors in ECU about insufficent DPF flow

Here is the autoscan:
Code:
Thursday,04,June,2015,02:25:15:35018
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 15.5.0.0 (x64)
Data version: 20150510
www.Ross-Tech.com


VIN: WAUZZZ8P4AAxxxxxx   License Plate: 


Chassis Type: 8P (1K0)

Scan: 01 03 08 09 10 15 16 17 19 22 25 37 42 44 46 52 55 56 62 72

          77



VIN: WAUZZZ8P4AAxxxxxx   Mileage: 197460km-122695miles



01-Engine -- 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

15-Airbags -- Status: OK 0000

16-Steering wheel -- Status: OK 0000

17-Instruments -- Status: OK 0000

19-CAN Gateway -- Status: OK 0000

22-AWD -- Status: OK 0000

25-Immobilizer -- Status: OK 0000

37-Navigation -- Status: Malfunction 0010

42-Door Elect, Driver -- Status: OK 0000

44-Steering Assist -- Status: OK 0000

46-Central Conv. -- Status: OK 0000

52-Door Elect, Pass. -- Status: OK 0000

55-Headlight Range -- Status: OK 0000

56-Radio -- Status: Malfunction 0010

62-Door, Rear Left -- Status: OK 0000

72-Door, Rear Right -- Status: OK 0000

77-Telephone -- Status: OK 0000

 

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

Address 01: Engine (CBB)       Labels: 03L-906-022-CBA.clb

   Part No SW: 03L 906 022 RB    HW: 03L 906 022 BQ

   Component: R4 2,0L EDC G000SG  3615  

   Revision: 13H01---    Serial number: AUX7Z0I5FNI0FO

   Coding: 0000172

   Shop #: WSC 84296 792 616680

   VCID: 76E9126B014FF78FA5-8023



No fault code found.

Readiness: 0 0 0 0 0 



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

Address 03: ABS Brakes (-----)       Labels: 1K0-907-379-60EC1F.clb

   Part No SW: 1K0 907 379 AP    HW: 1K0 907 379 AP

   Component: ESP MK60EC1   H45 0107  

   Revision: 00H45001    

   Coding: 1442601209230001280B06EA902200423C00

   Shop #: WSC 06314 000 00000

   VCID: 000574B3938BC93F8F-8055



No fault code found.



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

Address 08: Auto HVAC        Labels: 8P0-820-043.lbl

   Part No SW: 8P0 820 043 BK    HW: 8P0 820 043 BK

   Component: KlimavollautomatH09 0130  

   Revision: 000355      Serial number: 8P0820043BK   

   Shop #: WSC 00000 000 00000

   VCID: 76E9126B014FF78FA5-8023



No fault code found.



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

Address 09: Cent. Elect. (J519)       Labels: 8P0-907-063.clb

   Part No SW: 8P0 907 063 A    HW: 8P0 907 063 A

   Component: BCM PQ35  M   104 0541  

   Revision: 00104 AG    

   Coding: 06000A3FF0051AC0207240E00100095C477E2BAA316DD129E40008840040

   Shop #: WSC 06314 123 12345

   VCID: 3261EE7B6DA7ABAF49-8067



   Subsystem 1 - Part No SW: 8P1 955 119 F    HW: 8P1 955 119 F  Labels: 1KX-955-119.CLB

   Component: Wischer AU350  H10 0040 

   Coding: 00DD13



   Subsystem 2 - Part No SW: 8K0 910 557     HW: 8K0 955 559 D  Labels: 8K0-955-559.CLB

   Component: REGENLICHTSEN  H04 0003 

   Coding: 024C2D



No fault code found.



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

Address 10: Park/Steer Assist (J446)       Labels: 8P0-919-475-7X1.clb

   Part No SW: 8P0 919 475 G    HW: 8P0 919 475 

   Component: PARKHILFE 4K  H06 0120  

   Revision: 11001001    Serial number: 93630916503983

   Coding: 000003

   Shop #: WSC 06314 000 00000

   VCID: 4281BEBBDD071B2FD9-8017



No fault code found.



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

Address 15: Airbags (J234)       Labels: 8P0-959-655-10.clb

   Part No SW: 8P0 959 655 P    HW: 8P0 959 655 P

   Component: Airbag AU1042 H06 0140  

   Revision: --------    Serial number: 003FB001N91K

   Coding: 30314238303830303035554A304C38503053

   Shop #: WSC 06314 000 00000

   ASAM Dataset: EV_Airba10AURB4 001001

   ROD: EV_Airba10AURB4.rod

   VCID: 4FA7878F1655E64746-801A



   Crash sensor for side airbag; driver side: 

   Serial number: 3572DRB400008F05032J



   Crash sensor for side airbag; front passenger side: 

   Serial number: 3582DRB400008F350A7Z



   Crash sensor for side airbag; rear; driver side: 

   Serial number: 35128RB400004DED203O



   Crash sensor for side airbag; rear; passenger side: 

   Serial number: 35228RB400004DEB6FB7



   Crash sensor for front airbag; driver side: 

   Serial number: 35547RB400004E3612FP



   Crash sensor for front airbag; front passenger side: 

   Serial number: 35647RB400004E36115F



No fault code found.



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

Address 16: Steering wheel        Labels: 8P0-953-549.lbl

   Part No SW: 8P0 953 549 K    HW: 8P0 953 549 K

   Component: J0527           H37 0070  

   Coding: 0004042

   Shop #: WSC 06314 000 00000

   VCID: 4689A2AB312F270FF5-8013



   Subsystem 1 - Part No: XXXXXXXXXXX 

   Component: E0221           H02 0030



No fault code found.



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

Address 17: Instruments        Labels: 8P0-920-xxx-17-MY8.clb

   Part No SW: 8P0 920 932 C    HW: 8P0 920 932 C

   Component: KOMBIINSTR. VDO H02 0980  

   Revision: D0H02002    Serial number: 2245I002009555

   Coding: 0037028

   Shop #: WSC 00152 223 176563

   VCID: 346DE86357B3A59F5B-8061



No fault code found.



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

Address 19: CAN Gateway        Labels: 1K0-907-530-V4.clb

   Part No SW: 1K0 907 530 AA    HW: 1K0 907 951 

   Component: J533  Gateway   H16 0222  

   Revision:   H16       Serial number: 4020K09618099A

   Coding: E9A37F06400602002102

   Shop #: WSC 06314 000 00000

   VCID: 66C9422B51EF070F15-8033



No fault code found.



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

Address 22: AWD        Labels: 0AY-907-554-V1.clb

   Part No SW: 0BR 907 554 A    HW: 0BR 907 554 A

   Component: Haldex 4Motion      3016  

   Coding: 0000005

   Shop #: WSC 00000 000 00000

   VCID: 438FBBBF021D1227D2-8016



No fault code found.



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

Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb

   Part No SW: 8P0 920 932 C    HW: 8P0 920 932 C

   Component: KOMBIINSTR. VDO H02 0980  

   Revision: D0H02002    Serial number: AUX7Z0I5FNI0FO

   Shop #: WSC 03620 001 1048576

   VCID: 346DE86357B3A59F5B-8061



No fault code found.



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

Address 37: Navigation        Labels: 8J0-035-192-RNSL.lbl

   Part No SW: 8P0 035 192 P    HW: 8P0 035 192 P

   Component: J0503 RNS-LOW       0250  

   Revision: 00012000    Serial number: AUZ1Z1H8163518

   Coding: 0037097

   Shop #: WSC 17537 136 73459

   VCID: 3C7DC0437FE36DDF93-8069



1 Fault Found:

00862 - Antenna for GPS Navigation (R50/R52) 

            011 - Open Circuit

             Freeze Frame:

                    Fault Status: 01101011

                    Fault Priority: 3

                    Fault Frequency: 1

                    Reset counter: 88

                    Mileage: 192705 km

                    Time Indication: 0

                    Date: 2015.03.28

                    Time: 16:17:01





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

Address 42: Door Elect, Driver        Labels: 8P0-959-801-MAX3.lbl

   Part No SW: 8P0 959 801 M    HW: 8P0 959 801 M

   Component: Tuer-SG         H04 0100  

   Coding: 0004348

   Shop #: WSC 06314 000 00000

   VCID: 458BA5A70C292C17FC-8010



No fault code found.



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

Address 44: Steering Assist        Labels: 1Kx-909-14x-44.clb

   Part No: 1K0 909 144 H

   Component: EPS_ZFLS Kl. 233    2901  

   Revision: 00H15000    

   Shop #: WSC 02069 000 90108

   VCID: 2F67E70FBE95864726-807A



No fault code found.



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

Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MAX3.lbl

   Part No SW: 8P0 959 802 M    HW: 8P0 959 802 M

   Component: Tuer-SG         H04 0100  

   Coding: 0004348

   Shop #: WSC 06314 000 00000

   VCID: 4689A2AB312F270FF5-8013



No fault code found.



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

Address 55: Headlight Range        Labels: 4F0-910-357.lbl

   Part No SW: 4L0 910 357     HW: 4L0 907 357 

   Component: AFS 1           H01 0050  

   Revision: 00000001    Serial number:               

   Coding: 0000028

   Shop #: WSC 06314 000 00000

   VCID: 69D3491740F1287738-803C



   Subsystem 1 - Part No: 7L6 941 329 B

   Component: AFS-Modul links H03 0004



   Subsystem 2 - Part No: 7L6 941 329 B

   Component: AFS-Modul rechtsH03 0004



No fault code found.



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

Address 56: Radio        Labels: 8J0-035-192-RNSL.lbl

   Part No SW: 8P0 035 192 P    HW: 8P0 035 192 P

   Component: J0503 RNS-LOW       0250  

   Revision: 00012000    Serial number: AUZ1Z1H8163518

   Coding: 0037097

   Shop #: WSC 17537 136 73459

   VCID: 3C7DC0437FE36DDF93-8069



1 Fault Found:

00862 - Antenna for GPS Navigation (R50/R52) 

            011 - Open Circuit

             Freeze Frame:

                    Fault Status: 01101011

                    Fault Priority: 3

                    Fault Frequency: 1

                    Reset counter: 88

                    Mileage: 192705 km

                    Time Indication: 0

                    Date: 2015.03.28

                    Time: 16:17:01





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

Address 62: Door, Rear Left        Labels: 8P4-959-801.lbl

   Part No SW: 8P4 959 801 F    HW: 8P4 959 801 F

   Component: Tuer-SG         H04 0050  

   Coding: 0000216

   Shop #: WSC 06314 000 1012544

   VCID: 4281BEBB1D071B2FD9-8017



No fault code found.



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

Address 72: Door, Rear Right        Labels: 8P4-959-802.lbl

   Part No SW: 8P4 959 802 F    HW: 8P4 959 802 F

   Component: Tuer-SG         H04 0050  

   Coding: 0000216

   Shop #: WSC 06314 000 1012544

   VCID: 438FBBBF021D1227D2-8016



No fault code found.



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

Address 77: Telephone        Labels: 8P0-862-335.lbl

   Part No SW: 8P0 862 335 AA    HW: 8P0 862 335 S

   Component: FSE_256x BT     H34 0600  

   Revision: 00000000    Serial number: 00000005099893

   Coding: 0011422

   Shop #: WSC 06314 000 00000

   VCID: 75EB15671C49FC97AC-8020



No fault code found.



End-------------------------(Elapsed Time: 02:09)--------------------------

Hope its clear right now, let me know if not.

Thanks.
 
   #4  

Dana

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Although it may be unrelated to this exact inquiry I looked through your prior posts yesterday and noticed that Uwe asked if the EDC software was up to date. I dug a bit and this EDC (03L 906 022 RB) had a few TPIs/Flash updates over the years. Those includes the following software Levels; 3134, 3615 (which is the current version) and lastly 6552 (which was a cooling function fan problem).

You might want to check out TPI 2024764/10 and have the EGR cooler and pipes checked for excessive carbon (restrictions) followed by the latest flash update which should bump that EDC to SW# 03L 997 021 G with SWL 0508 or higher.

I can't answer the specific question but the values would have to be different depending on the load, time since last regen, driving type, temp, etc. If that vehicle uses an EGR cooler (like our US models) and the EGR cooler, or any part of the exhaust emissions system, is restricted engine performance problems in addition to DPF faults wouldn't be unheard of.

I think this thread would receive more feedback in the Car Repair Support sub-forum.
 
   #5  

AIB Wolfgang

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Hello,

These are the values which I prefer to work with.

DPF new or loading up to 15%
engine at idle and operating temperature > 0-10 mbar

>1500/min > 5-20 mbar
>2000/min > 15-35 mbar

DPF loading up to 40-60% (regeneration required)
engine at idle and operating temperature
>1500/min > more than 50-80 mbar
>2000/min > more than 150 mbar

For excample, 2.0 l CR DPF loading 15%
at idle > 5 mbar
2100/min > 20 mbar
3100/min > 65 mbar
4000/min > 105 mbar
 
   #6  

Coreyj

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sorry misread post.
 
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