S6 c6 5.2 V10 - Misfires HELP!

Hello ALL!

I could really do with some support from you guys.

Vehicle:
Audi S6 C6 2006 5.2 V10 (UK RHD)

Issue:
Car was driving fine until i stopped at a junction and it developed a nasty misfire, it felt like i had lost a bunch of cylinders. No warning signs, it just happened instantly.
Also noticed that the LPFP no longer primes when opening the drivers door, it has always primed before, however when key is inserted and ignition is turned on it does prime.
Car is misfiring violently and will not idle unless i keep my foot on the gas pedal. Due to this I’m not really able to collect any live data.
However if i give a pedal full it does respond at higher rpm.

Things i have done recently:
Carbon clean
fuel filter
new battery
front crank oil seal
both valve cover gaskets
x1 MAF (still waiting for the 2nd)
x10 Bosch coil packs
Spark plugs changed within last 12mths.
Oil filter housing orings
Throttle body gaskets
Inlet manifold gasket
Checked as many relays as i can find including the ones under the ECU’s.
Checked fuel pump fuse (Behind cover passenger side dash).

I have done a scan and the following has been found.

Friday,03,June,2022,02:07:20:00009
VCDS – Windows Based VAG/VAS Emulator Running on Windows 7 x86
VCDS Version: 20.4.0.1
Data version: 20200331 DS317.0

VIN: WAUZZZ4F67N066398 License Plate: S6RFU
Mileage: 168000km-104390mi Repair Order: 3.6.22_2



Chassis Type: 4F (4L0)
Scan: 01 02 03 05 07 08 09 0E 11 31 15 16 17 19 37 42 46 47 4F 52
53 55 56 61 62 6C 72 76 77

VIN: WAUZZZ4F67N066398 Mileage: 168000km-104390miles

00-Steering Angle Sensor – Status: OK 0000
01-Engine – Status: Malfunction 0010
02-Auto Trans – Status: OK 0000
03-ABS Brakes – Status: Malfunction 0010
05-Acc/Start Auth. – Status: OK 0000
07-Control Head – Status: OK 0000
08-Auto HVAC – Status: OK 0000
09-Cent. Elect. – Status: Malfunction 0010
0E-Media Player 1 – Status: OK 0000
11-Engine II – Status: Malfunction 0010
31-Engine other – Status: Malfunction 0010
15-Airbags – Status: OK 0000
16-Steering wheel – Status: OK 0000
17-Instruments – Status: OK 0000
19-CAN Gateway – Status: OK 0000
37-Navigation – Status: OK 0000
42-Door Elect, Driver – Status: OK 0000
46-Central Conv. – Status: OK 0000
47-Sound System – Status: OK 0000
4F-Centr. Electr. II – Status: OK 0000
52-Door Elect, Pass. – Status: OK 0000
53-Parking Brake – Status: Malfunction 0010
55-Headlight Range – Status: OK 0000
56-Radio – Status: OK 0000
61-Battery Regul. – Status: OK 0000
62-Door, Rear Left – Status: OK 0000
6C-Back-up Cam. – Status: Malfunction 0010
72-Door, Rear Right – Status: OK 0000
76-Park Assist – Status: Malfunction 0010
77-Telephone – Status: OK 0000


Address 01: Engine Labels: Redir Fail!
Part No SW: 4F1 910 552 C HW: 4F1 907 552
Component: 5.2L V10/4V FSI ª0060
Revision: 59H09— Serial number:
Coding: 010D0003190F0160
Shop #: WSC 00191 264 15243
VCID: 24475997E7DBF6A646-8070

2 Faults Found:
005715 - Please check DTC Memory of ABS Controller
P1653 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 0
Fault Frequency: 11
Reset counter: 255
Mileage: 168004 km
Time Indication: 0
Date: 2006.05.10
Time: 16:59:34

         Freeze Frame:
                RPM: 0 /min
                Load: 0.0 %
                Speed: 0.0 km/h
                Temperature: 17.0°C
                Temperature: 18.0°C
                Absolute Pres.: 990.0 mbar
                Voltage: 12.065 V

006435 - Please Check DTC Memory of ECU Number 2
P1923 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 168004 km
Time Indication: 0
Date: 2006.05.14
Time: 16:43:09

         Freeze Frame:
                RPM: 0 /min
                Load: 0.0 %
                Speed: 0.0 km/h
                Temperature: 36.0°C
                Temperature: 24.0°C
                Absolute Pres.: 1000.0 mbar
                Voltage: 12.319 V

Readiness: 0110 1101


Address 02: Auto Trans Labels: 09E-927-156.lbl
Part No SW: 4F2 910 156 M HW: 09E 927 156 C
Component: AG6 09E 5,2 FSI RdW 0030
Revision: --H01— Serial number: 0094174
Coding: 0000001
Shop #: WSC 02335 785 00200
VCID: 2F6DA6BBBE1D45FEAB-807A

No fault code found.


Address 03: ABS Brakes Labels: 4F0-910-517.clb
Part No SW: 4F0 910 517 P HW: 4F0 614 517 P
Component: ESP 8.0 quattro H05 0070
Revision: 00000000 Serial number: 00000000000000
Coding: 0020920
Shop #: WSC 02335 785 00200
VCID: 3169A0C3A829530EBD-8064

4 Faults Found:
18265 - Load Signal
P1857 - 000 - Error Message from ECU - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 3
Fault Frequency: 3
Reset counter: 245
Mileage: 167848 km
Time Indication: 0
Date: 2022.04.19
Time: 19:34:56

         Freeze Frame:
                Hex Value: 0x0000
                Hex Value: 0x6282
                Hex Value: 0x0028
                Hex Value: 0x018E
                Hex Value: 0x00FF

01314 - Engine Control Module
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 3
Fault Frequency: 7
Reset counter: 245
Mileage: 168005 km
Time Indication: 0
Date: 2006.05.12
Time: 13:23:15

         Freeze Frame:
                Hex Value: 0x0000
                Hex Value: 0x6282
                Hex Value: 0x0025
                Hex Value: 0x018D
                Hex Value: 0x00FF

02083 - Message for Delay Request
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 233
Mileage: 167848 km
Time Indication: 0
Date: 2022.04.20
Time: 11:10:39

         Freeze Frame:
                Hex Value: 0x0080
                Hex Value: 0x0282
                Hex Value: 0x002B
                Hex Value: 0x058D
                Hex Value: 0x00FF

01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 3
Fault Frequency: 14
Reset counter: 205
Mileage: 168004 km
Time Indication: 0
Date: 2006.05.10
Time: 12:55:27

         Freeze Frame:
                Hex Value: 0x0000
                Hex Value: 0x0282
                Hex Value: 0x0024
                Hex Value: 0x0185
                Hex Value: 0x00FF

Address 05: Acc/Start Auth. Labels:. 4F0-910-852.clb
Part No SW: 4F0 910 852 HW: 4F0 905 852 B
Component: FBSAUDIC6 ELV H31 0220
Revision: 31050601 Serial number: 10601100558139
Coding: 0000147
Shop #: WSC 09552 003 104857
VCID: 63C51A8BA255B19E7F-8036

Subsystem 1 - Part No: 4F0 910 131 E
Component: FBSAUDIC6 EZS H45 0080

Subsystem 2 - Part No: 4F0 910 220 D
Component: FBSAUDIC6 IDG H01 0040

No fault code found.


Address 07: Control Head Labels: 4F0-910-7xx-07-H.clb
Part No SW: 4F0 910 732 T HW: 4E0 035 729 A
Component: Interfacebox H43 5150
Revision: 00000000 Serial number: 351JS067526164
Coding: 0031002
Shop #: WSC 02335 785 00200
VCID: 3467A9D7573B6626D6-8060

Subsystem 1 - Part No: 4F0 910 609 E
Component: Bedienteil MMIC6H02 0060

Subsystem 2 - Serial number: 00000000539436

Subsystem 3 - Serial number: 0129.09.060000000100010332ÿ

Subsystem 4 - Serial number: 010332ÿ

No fault code found.


Address 08: Auto HVAC Labels: 4F0-910-043.clb
Part No SW: 4F0 910 043 A HW: 4F2 820 043 P
Component: KLIMABETAETIGUNGH30 0020
Revision: 00000052 Serial number: 00000000415039
Coding: 0525578
Shop #: WSC 02325 758 00200
VCID: 1C376177DFABCE66FE-8048

No fault code found.


Address 09: Cent. Elect. Labels: 4F0-910-279.lbl
Part No SW: 4F0 910 279 K HW: 4F0 907 279
Component: ILM Fahrer H15 0240
Revision: 00000000 Serial number: 4F0907279
Coding: 0015121
Shop #: WSC 02335 785 00200
VCID: 3169A0C3A829530EBD-8064

Subsystem 1 - Part No: 4F2 910 113 B Labels: 1KX-955-119.CLB
Component: Wischer AudiC6 H04 0190
Coding: 00064784
Shop #: WSC 02335

Subsystem 2 - Part No: 4E0 910 557 A Labels: 8K0-955-559.CLB
Component: REGENLICHTSENSORH13 0090
Coding: 00146221
Shop #: WSC 02335

2 Faults Found:
01496 - Bulb for Fog-Lamps; Left (L22)
010 - Open or Short to Plus - Intermittent
Freeze Frame:
Fault Status: 00111010
Fault Priority: 2
Fault Frequency: 1
Reset counter: 242
Mileage: 167964 km
Time Indication: 0
Date: 2006.05.10
Time: 16:52:00

01500 - Bulb for Fog-Lamps; Right (L23)
010 - Open or Short to Plus - Intermittent
Freeze Frame:
Fault Status: 00111010
Fault Priority: 2
Fault Frequency: 25
Reset counter: 245
Mileage: 166520 km
Time Indication: 0
Date: 2022.03.15
Time: 20:16:00


Address 0E: Media Player 1 Labels: 4E0-035-785.lbl
Part No SW: 4E0 035 785 F HW: 4E0 035 785 C
Component: SG ext.Player H20 0850
Coding: 010000
Shop #: WSC 00000 000 00000
VCID: 2B55B2AB4A0539DE87-807E

No Faults Found
or DTCs not supported by controller
or a communication error occurred


Address 11: Engine II Labels: Redir Fail!
Part No SW: 4F1 910 552 C HW: 4F1 907 552
Component: 5.2L V10/4V FSI ª0060
Revision: 59H09— Serial number:
Coding: 010D0003190F0160
Shop #: WSC 00191 264 15243
VCID: 24475997E7DBF6A646-8070

1 Fault Found:
005715 - Please check DTC Memory of ABS Controller
P1653 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 0
Fault Frequency: 12
Reset counter: 255
Mileage: 168004 km
Time Indication: 0
Date: 2006.05.10
Time: 16:59:34

         Freeze Frame:
                RPM: 0 /min
                Load: 0.0 %
                Speed: 0.0 km/h
                Temperature: 17.0°C
                Temperature: 18.0°C
                Absolute Pres.: 990.0 mbar
                Voltage: 12.065 V

Address 15: Airbags Labels: 4F0-910-655-8R.clb
Part No SW: 4F0 910 655 E HW: 4F0 959 655 B
Component: 4E AIRBAG AUDI8RH29 0280
Revision: 08H29000 Serial number: 0037LD0H2SKP
Coding: 0013381
Shop #: WSC 02325 785 00200
VCID: 295948A380F92BCE75-807C

Subsystem 1 - Serial number: 6332CSME13446A22-

Subsystem 2 - Serial number: 6342CSME13263367-

Subsystem 3 - Serial number: 6352QSME113C2875G

Subsystem 4 - Serial number: 6362QSME140C104DD

Subsystem 5 - Serial number: 63734SME19102C0F+

Subsystem 6 - Serial number: 63834SME75272F6EH

No fault code found.


Address 16: Steering wheel Labels: 4F0-910-549.lbl
Part No SW: 4F0 910 549 HW: 4F0 953 549 A
Component: Lenksäulenmodul H08 0230
Revision: 00H08000 Serial number: 90026062800089
Coding: 0102142
Shop #: WSC 02335 785 00200
VCID: 66C3039F5167C4B698-8032

Subsystem 1 - Part No: XXXXXXXXXXX
Component: Lenkradmodul H07 0090

No fault code found.


Address 17: Instruments Labels: 4F0-910-xxx-17.lbl
Part No SW: 4F0 910 930 C HW: 4F0 920 980 P
Component: KOMBIINSTR. M73 H18 0120
Revision: 00600000 Serial number: 5H236JU96
Coding: 2049443
Shop #: WSC 01249 210 57207
VCID: 23455A8BE2D5F19E3F-8076

No fault code found.


Address 19: CAN Gateway Labels:. 4L0-910-468.clb
Part No SW: 4L0 910 468 HW: 4L0 907 468
Component: J533__Gateway H06 0040
Revision: 00H06000 Serial number: 0900B06A040089
Coding: F551DEF7303206
Shop #: WSC 02335 785 00200
VCID: 6CD771B74F8BFEE6CE-8038

No fault code found.


Address 37: Navigation Labels: 4E0-910-88x-37.lbl
Part No SW: 4E0 910 887 Q HW: 4E0 919 887 D
Component: MNS ECE H48 0850
Revision: 00000000 Serial number: 364J-067598240
Shop #: WSC 00518 210 91379
VCID: 3B7582EB7A65A95E17-806E

No fault code found.


Address 42: Door Elect, Driver Labels: 4F0-910-793-42.lbl
Part No SW: 4F0 910 793 E HW: 4F0 959 793 E
Component: TSG FA H12 0120
Revision: 00-00000
Coding: 0003706
Shop #: WSC 02335 785 00200
VCID: 2C57B1B78F0B3EE68E-8078

No fault code found.


Address 46: Central Conv. Labels:. 4F0-910-289.lbl
Part No SW: 4F0 910 289 G HW: 4F0 907 289 G
Component: Komfortgeraet H22 0170
Revision: 01700022 Serial number: 01021301420000
Coding: 0140027
Shop #: WSC 02335 785 00200
VCID: 2E53BBBFB9174CF6A0-807A

Subsystem 1 - Part No: 1K0 951 605 C
Component: LIN BACKUP HORN H03 1301

Subsystem 2 - Part No: 4F0 910 177
Component: Innenraumueberw.H01 0020

No fault code found.


Address 47: Sound System Labels: 4F0-910-223-BO.lbl
Part No SW: 4F0 910 223 J HW: 4F0 035 223 G
Component: DSP-High C6 H09 0240
Revision: PROD_01 Serial number: 00000000015083
Coding: 0000115
Shop #: WSC 02335 785 00200
VCID: 25414493ECE10FAE51-8070

No fault code found.


Address 4F: Centr. Electr. II Labels: 4F0-910-280.lbl
Part No SW: 4F0 910 280 HW: 4F0 907 280 A
Component: ILM Beifahrer H10 0080
Revision: Serial number: 00000000286940
Coding: 0011104
Shop #: WSC 02335 785 00200
VCID: 5EB32B7F89379C7650-800A

No fault code found.


Address 52: Door Elect, Pass. Labels: 4F0-910-793-52.lbl
Part No SW: 4F0 910 793 E HW: 4F0 959 792 E
Component: TSG BF H12 0120
Revision: 00-00000
Coding: 0003706
Shop #: WSC 02335 785 00200
VCID: 2C57B1B78F0B3EE68E-8078

No fault code found.


Address 53: Parking Brake Labels: 4F0-910-801.clb
Part No SW: 4F0 910 801 B HW: 4F0 907 801 A
Component: EPB CB4C0060 H04 0060
Revision: --H04—
Coding: 0008021
Shop #: WSC 02324 785 00200
VCID: 1F4D567BCEBDD57E1B-804A

1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 4
Fault Frequency: 1
Reset counter: 233
Time Indication: 0

         Freeze Frame:
                Voltage: 10.46 V
                Count: 241

Address 55: Headlight Range Labels: 8P0-907-357.lbl
Part No: 8P0 907 357 F
Component: Dynamische LWR H02 0010
Revision: 00000001 Serial number:
Coding: 0000003
Shop #: WSC 02325 785 00200
VCID: 3D718CF36471A76E29-8068

No fault code found.


Address 56: Radio Labels: 4E0-910-541.lbl
Part No SW: 4E0 910 541 Q HW: 4F0 035 541 H
Component: TUNER EU/US/RDW H42 0620
Revision: 00000000 Serial number: 394J6067689861
Coding: 0000001
Shop #: WSC 02335 785 00200
VCID: 2E53BBBFB9174CF6A0-807A

No fault code found.


Address 61: Battery Regul. Labels: 4F0-910-181.lbl
Part No SW: 4F0 910 181 E HW: 4F0 915 181 A
Component: J0644 BEM H12 0590
Revision: 00000000 Serial number: 00000000128301
Shop #: WSC 02335 785 00200
VCID: 23455A8BE2D5F19E3F-8076

Subsystem 1 - Part No: EB9 500 000 0
Component: von TU3 5882760038
Coding: 454239353030303030302054553335383832373630303338
Shop #: WSC 12345 384 00290

No fault code found.


Address 62: Door, Rear Left Labels: 4F0-910-795.lbl
Part No SW: 4F0 910 795 E HW: 4F0 959 795 E
Component: TSG HL H21 0050
Coding: 0003114
Shop #: WSC 02335 785 00200
VCID: 2E53BBBFB9174CF6A0-807A

No fault code found.


Address 6C: Back-up Cam. Labels: 4L0-910-441.clb
Part No SW: 4F0 910 441 A HW: 4L0 907 441 A
Component: J772__Rearview 0050
Revision: --H12— Serial number: 525PA8-J6830I8
Coding: 1020205
Shop #: WSC 02335 785 00200
VCID: 1E336B7FC9B7DC7610-804A

1 Fault Found:
00778 - Steering Angle Sensor (G85)
013 - Check DTC Memory
Freeze Frame:
Fault Status: 01101101
Fault Priority: 3
Fault Frequency: 1
Reset counter: 205
Mileage: 168004 km
Time Indication: 0
Date: 2006.05.14
Time: 16:43:09

         Freeze Frame:
                    Term 15 On
                    Reverse OFF
                Count: 3

Address 72: Door, Rear Right Labels: 4F0-910-795.lbl
Part No SW: 4F0 910 795 E HW: 4F0 959 794 E
Component: TSG HR H21 0050
Coding: 0003114
Shop #: WSC 02335 785 00200
VCID: 2E53BBBFB9174CF6A0-807A

No fault code found.


Address 76: Park Assist Labels: 4Fx-910-283.lbl
Part No SW: 4F0 910 283 G HW: 4F0 919 283 G
Component: Parkhilfe 8-Kan H12 0060
Revision: 00H12000 Serial number: 06320627700355
Coding: 0221116
Shop #: WSC 02335 785 00200
VCID: 285F4DA79BF312C66A-807C

2 Faults Found:
01549 - Supply Voltage for Parking-Aid Sensor
009 - Open or Short to Ground
Freeze Frame:
Fault Status: 01101001
Fault Priority: 3
Fault Frequency: 1
Reset counter: 205
Mileage: 168005 km
Time Indication: 0
Date: 2006.05.13
Time: 08:31:13

01549 - Supply Voltage for Parking-Aid Sensor
002 - Lower Limit Exceeded
Freeze Frame:
Fault Status: 01100010
Fault Priority: 3
Fault Frequency: 1
Reset counter: 205
Mileage: 168005 km
Time Indication: 0
Date: 2006.05.13
Time: 08:31:13


Address 77: Telephone Labels: 4E0-910-336.lbl
Part No SW: 4E0 910 336 M HW: 4E0 862 335
Component: Handyvorb2 H16 1130
Revision: 00000000 Serial number: 00000007595932
Coding: 0010920
Shop #: WSC 00518 210 91379
VCID: 2C57B1B78F0B3EE68E-8078

No fault code found.

End-------------------------(Elapsed Time: 03:12)--------------------------

Hope somebody out there can support as im out of my depth with this one!
Thanks in advance
Rich

Heyy Rich long time no see I see you are in a hiccup. Are you sure you checked all the relays and fuses that are under the steering wheel and that are in the engine bay.

My car did the same thing that yours is doing but a while ago. Basically one of the high pressure fuel pumps kept blowing the fuse or was it a relay I’m pretty sure it was a fuse. Whenever that pump was in i had lost communication and steering angle sensor and all that with a blown fuse.

You said you checked everything so maybe that other stuff on the codes is a separate issue that maybe the pump isn’t causing

I’m trying to remember but it kept blowing the communication fuse that was in the engine bay

I never really solved it until i just went you know what I’ll change the shit and i was right. i changed both of them and everything was fine and when I put one of the old ones back in all those problems came back. Car was misfiring and steering angle codes and lost communication codes and instantly blew the fuse

Since you are saying that the high pressure pump isn’t making the priming noise it could possibly be the cause of the problem

I think there’s a way on ross tech to see fuel pressure going through there but i’m not sure

I’m pretty sure it’s the pump in your case if you haven’t changed it before

Fuel rail pressure you should be able to see in channel 140 on engine 1 & engine 2 modules. Could give you a incline whether they are operating properly. Judging by the fact the idle is terrible/failing, and responsive at higher RPM, it sounds like a severe vacuum leak. I would check all hoses and such, and maybe check PCV for a huge crack. Its a quick and free check:)

1 Like

Hello, thank you for your reply.
I forgot to mention i have just recently changed the PCV so hopefully rule that one out.
Started the car earlier and managed to quickly get some live data whilst it was running.
I have no idea if the number are correct but there is a difference in the MAF readings.
10. Mass Air Flow 2.97 & 1.72
11. Throttle position 11.0% & 11.8%
23. Fuel Rail Pressure 3380 kpa & 3370 kpa

Does this shed any light on possible causes?

I am new to all of this and even newer using measuring blocks, would you recommend any other live data?

Thanks in advance
Rich

Hey, how are you doing?
Yes never a dull moment owning a S6!
I have reconfirmed fuses and relays and all looks good.
Live data from MAF looks different between them, not sure if they are correct or what they should be reading, any ides on that?
Seem to be going round in circles and getting nowhere fast…

Fuel pressure seems to be fine, the variance in MAF readings seems strange indeed, wouldnt expect more than ±1% differance there. If the MAF is going wonky, it will feed bad data to ECM, which would corrupt the ECMS calculations of air/fuel ratios, which could indeed cause these misfires/rough conditions. However, it is possible that the MAF is actually still functional, which means this variation comes from somewhere. Potentially the throttle valves. I would recommend starting with a quick&free check there, before jumping the gun on a new MAF sensor. Get a friend/camera, and check that the valves are operating as expected, and symmetrical. If a valve is not operating as expected, it could cause the engine to suck in extra air, causing the MAF readings variation, and the vacuum leak symptoms. Could also be a good idea to compare the MAF readings to eachother, taken on a few different RPM levels, see if there is consitency in the variation.