P0087 Error Code

A6 All/ S6 All
#1

Well, I just changed my transmission fluid and feeling good headed out - in sport mode of course. Motor is really feeling good and shifts are excellent. After a bit of driving, dropped the pedal to edge my way past an m5 and suddenly - loss of power, engine light and eps. I’ve seen this before. Just before I had the fuel pumps and rail replaced under warranty, but why, again? Ack.

I need to check if the fuel pump sensors were replaced in the last work, but I assume they were since the pumps and rail are new. I do need to do VC gaskets, but they’re not terrible. Also plan to clean the TB’s, but they shouldn’t be that bad. Also need to check when the fuel filter was replaced. Thinking I could take the TB’s off and inspect for kinks/etc. This is nearly identical to what happened before when the pumps were replaced - however then there was a leak and strong gas odor. My codes are below. Pulled these, cleared - was hopeful they would say gone since I’m not pushing it in sport mode, but unfortunately they’re back under conservative driving in D. Cold start is a little rough, but smooths out nicely once warmed up - attributing this to VC’s maybe leaking into plugs, but haven’t verified. Cam followers? Any suggestions greatly appreciated. Cheers and happy Friday!

Address 01: Engine (BXA) Labels: Redir Fail!
Part No SW: 4F1 910 562 A HW: 4F1 907 552 B
Component: 5.2L V10/4V FSI ™0010
Revision: 5HH02— Serial number:
Coding: 01050009190F0260
Shop #: WSC 26097 444 83501
VCID: 234Exxx

2 Faults Found:
000135 - Fuel Rail/System Pressure
P0087 - 002 - Too Low - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 5
Reset counter: 255
Mileage: 166025 km
Time Indication: 0
Date: 2017.01.07
Time: 14:28:42

         Freeze Frame:
                RPM: 3142 /min
                Load: 33.7 %
                Speed: 114.0 km/h
                Temperature: 93.0∞C
                Temperature: 18.0∞C
                Absolute Pres.: 1000.0 mbar
                Voltage: 14.097 V

000135 - Fuel Rail/System Pressure
P0087 - 008 - Too Low - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 166029 km
Time Indication: 0
Date: 2017.01.07
Time: 14:31:01

         Freeze Frame:
                RPM: 3017 /min
                Load: 46.3 %
                Speed: 111.0 km/h
                Temperature: 96.0∞C
                Temperature: 18.0∞C
                Absolute Pres.: 1010.0 mbar
                Voltage: 14.224 V

Readiness: 0000 0000

#2

Have you ever had the fuel injectors serviced and/or a carbon clean done? I think that the injectors cause the high pressure pumps to go bad from not flowing correctly due to carbon buildup.

This doesn’t sound like a sensor problem but rather a fuel flow problem. If a sensor wasn’t reading right then usually there wouldn’t be such a hard fuel cut like that killing power and tripping the idiot lights. It would just trip the lights and run slightly worse than it should.

The camshaft followers are the roller style like the FSI V8s. Only really the 2.0T FSI belt engine had a problem with the camshaft follower because it used a flat tappet style camshaft follower.

Did you scan 11-engine electronics 2 as well?

#3

Thanks so much for the reply. Carbon clean has been done along with a new manifold by the dealer previous owner relatively late mileage. There were a few electrical oddities, including sunlight sensor and alarm, both of which seem to be working fine now. Repaired a found broken and shorted wire leading to the hood release and the hood stopped releasing. Works fine again after manually releasing (that was interesting but ended very well without a scratch).

Injectors are on the maintenance list, but you have an interesting point. Considering dealer service I hope they would would done the fuel filter. Are there other common ways of contaminating the fuel system? My experience has been if an injector starts to go you can swap the bad one by trial and error correcting the idle once found even if no code. Are the pumps not pumping fuel TO the injector? How could a dirty injector plug a pump. Thanks again. All codes below.

Monday,09,January,2017,21:17:27:17230
VCDS – Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 17.1.0.0 (x64)
Data version: 20170106 DS267.0
www.Ross-Tech.com

VIN: WAUDN74F88N076782 License Plate: AUDI S6
Mileage: 166110km-103215mi Repair Order:

Chassis Type: 4F (4L0)
Scan: 01 02 03 05 07 08 09 0E 0F 11 31 13 15 16 17 19 1E 36 37 42
46 47 4F 52 53 55 56 5C 61 62 65 67 6C 72 76 77

VIN: WAUDN74F88N076782 Mileage: 166110km-103215miles

00-Steering Angle Sensor – Status: OK 0000
01-Engine – Status: Malfunction 0010
02-Auto Trans – Status: OK 0000
03-ABS Brakes – Status: OK 0000
05-Acc/Start Auth. – Status: OK 0000
07-Control Head – Status: OK 0000
08-Auto HVAC – Status: Malfunction 0010
09-Cent. Elect. – Status: OK 0000
0E-Media Player 1 – Status: OK 0000
0F-Digital Radio – Status: Malfunction 0010
11-Engine II – Status: OK 0000
31-Engine other – Status: OK 0000
13-Auto Dist. Reg – Status: OK 0000
15-Airbags – Status: OK 0000
16-Steering wheel – Status: OK 0000
17-Instruments – Status: OK 0000
19-CAN Gateway – Status: Malfunction 0010
1E-Media Player 2 – Status: OK 0000
36-Seat Mem. Drvr – Status: OK 0000
37-Navigation – Status: OK 0000
42-Door Elect, Driver – Status: OK 0000
46-Central Conv. – Status: Malfunction 0010
47-Sound System – Status: OK 0000
4F-Centr. Electr. II – Status: OK 0000
52-Door Elect, Pass. – Status: OK 0000
53-Parking Brake – Status: OK 0000
55-Headlight Range – Status: OK 0000
56-Radio – Status: OK 0000
5C-Lane Maintain. – Status: OK 0000
61-Battery Regul. – Status: Malfunction 0010
62-Door, Rear Left – Status: OK 0000
65-Tire Pressure – Status: OK 0000
67-Voice Control – Status: OK 0000
6C-Back-up Cam. – Status: OK 0000
72-Door, Rear Right – Status: OK 0000
76-Park Assist – Status: OK 0000
77-Telephone – Status: OK 0000

Address 01: Engine (BXA) Labels: Redir Fail!
Part No SW: 4F1 910 562 A HW: 4F1 907 552 B
Component: 5.2L V10/4V FSI ª0010
Revision: 5HH02— Serial number:
Coding: 01050009190F0260
Shop #: WSC 26097 444 83501
VCID: 234E156AE296B659F2-8076

2 Faults Found:
000135 - Fuel Rail/System Pressure
P0087 - 002 - Too Low - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 5
Reset counter: 255
Mileage: 166025 km
Time Indication: 0
Date: 2017.01.07
Time: 14:28:42

         Freeze Frame:
                RPM: 3142 /min
                Load: 33.7 %
                Speed: 114.0 km/h
                Temperature: 93.0°C
                Temperature: 18.0°C
                Absolute Pres.: 1000.0 mbar
                Voltage: 14.097 V

000135 - Fuel Rail/System Pressure
P0087 - 008 - Too Low - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 166029 km
Time Indication: 0
Date: 2017.01.07
Time: 14:31:01

         Freeze Frame:
                RPM: 3017 /min
                Load: 46.3 %
                Speed: 111.0 km/h
                Temperature: 96.0°C
                Temperature: 18.0°C
                Absolute Pres.: 1010.0 mbar
                Voltage: 14.224 V

Readiness: 0000 0000

Address 02: Auto Trans Labels: 09E-927-156.lbl
Part No SW: 4F5 910 156 F HW: 09E 927 156 C
Component: AG6 09E 5,2 FSI USA 0020
Revision: --H04— Serial number: 0113891
Coding: 0000002
Shop #: WSC 02325 758 00200
VCID: 2B5EFD4A8A467E194A-807E

No fault code found.

Address 03: ABS Brakes Labels: 4F0-910-517.lbl
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 34412 001 1048576
VCID: 3162EF22A86A14C970-8064

No fault code found.

Address 05: Acc/Start Auth. Labels: 4F0-910-852.clb
Part No SW: 4F0 910 852 A HW: 4F0 905 852 C
Component: FBSAUDIC6 ELVSG H01 0040
Revision: 09010701 Serial number: 10601600909336
Coding: 0000007
Shop #: WSC 02323 758 00200
VCID: 244C1676E798B1618B-8070

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

Subsystem 2 - Part No: 4F0 910 335
Component: FBSAUDIC6 KSG H27 0080

No fault code found.

Address 07: Control Head Labels: 4F0-910-7xx-07-H.clb
Part No SW: 4F0 910 732 D HW: 4E0 035 729 A
Component: Interfacebox H43 4140
Revision: 00000000 Serial number: 361K 077518548
Coding: 0010003
Shop #: WSC 02335 785 00200
VCID: 244C1676E798B1618B-8070

Subsystem 1 - Part No: 4F0 910 609 E
Component: Bedienteil MMIC6H01 0060

Subsystem 2 - Serial number: 00000000917414

Subsystem 3 - Serial number: 0107.11.070000000100010578ÿ

Subsystem 4 - Serial number: 010578ÿ

No fault code found.

Address 08: Auto HVAC Labels: 4F0-910-043.clb
Part No SW: 4F0 910 043 A HW: 4F1 820 043 AG
Component: KLIMABETAETIGUNGH30 0020
Revision: 00000053 Serial number: 00000000463367
Coding: 0524330
Shop #: WSC 02325 758 00200
VCID: 1C3C2E96DFE889A133-8048

1 Fault Found:
00797 - Sunlight Photo Sensor (G107)
009 - Open or Short to Ground - Intermittent
Freeze Frame:
Fault Status: 00101001
Fault Priority: 3
Fault Frequency: 124
Reset counter: 210
Mileage: 164525 km
Time Indication: 0
Date: 2016.12.02
Time: 23:25:15

Address 09: Cent. Elect. Labels: 4F0-910-279.lbl
Part No SW: 4F0 910 279 J HW: 4F0 907 279 A
Component: ILM Fahrer H18 0250
Revision: 00000000 Serial number: 4F0907279
Coding: 0115103
Shop #: WSC 02335 785 00200
VCID: 3064EA26A3601DC17F-8064

Subsystem 1 - Part No: 4F1 910 113 C Labels: 1KX-955-119.CLB
Component: Wischer AudiC6 H05 0210
Coding: 00064784
Shop #: WSC 02335

Subsystem 2 - Part No: 4E0 910 557 B Labels: 8K0-955-559.CLB
Component: REGENLICHTSENSORH13 0100
Coding: 00150573
Shop #: WSC 02335

No fault code found.

Address 0E: Media Player 1 (R192) Labels: 4E0-035-785.lbl
Part No SW: 4E0 035 785 B HW: 4E0 035 785 B
Component: SG ext.Player H15 0700
Revision: 00000000
VCID: 2756017A56AE5A79AE-8072

No fault code found.

Address 0F: Digital Radio Labels: 4E0-910-593-SIR.lbl
Part No SW: 4E0 910 593 K HW: 4E0 035 593 F
Component: SDAR SIRIUS H07 0140
Revision: 00000000 Serial number: AUZ4Z7G0190891
Coding: 0000100
Shop #: WSC 00000 000 00000
VCID: 2F66E95ABE5E023966-807A

1 Fault Found:
02635 - Tuner Not Enabled/Activated
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 7
Fault Frequency: 4
Reset counter: 160
Mileage: 165757 km
Time Indication: 0
Date: 2016.12.30
Time: 16:52:52

Address 11: Engine II Labels: Redir Fail!
Part No SW: 4F1 910 562 A HW: 4F1 907 552 B
Component: 5.2L V10/4V FSI ª0010
Revision: 5HH02— Serial number:
Coding: 01050009190F0260
Shop #: WSC 26097 444 83501
VCID: 234E156AE296B659F2-8076

No fault code found.

Address 13: Auto Dist. Reg Labels: None
Part No SW: 4F0 910 561 C HW: 4F0 907 561 B
Component: ABSTANDSREGELUNGH02 0020
Revision: -------- Serial number: 00000000000000
Coding: 0041118
Shop #: WSC 02325 758 00200
VCID: 234E156AE296B659F2-8076

No fault code found.

Address 15: Airbags Labels: 4F0-910-655-8R.clb
Part No SW: 4F0 910 655 K HW: 4F0 959 655 D
Component: 7Q AIRBAG AUDI8RH30 0400
Revision: 02H30000 Serial number: 003BMD020K4W
Coding: 0014161
Shop #: WSC 02325 758 00200
VCID: 2F66E95ABE5E023966-807A

Subsystem 1 - Part No: 4F0 910 339 B
Component: BF-Gewichtsens. H03 0060

Subsystem 2 - Serial number: 6332CSME3401583E%

Subsystem 3 - Serial number: 6342CSME30342B67+

Subsystem 4 - Serial number: 6352QSME4561383BI

Subsystem 5 - Serial number: 6362QSME46012E35D

Subsystem 6 - Serial number: 63734SME4567225B0

Subsystem 7 - Serial number: 63834SME155A2260X

No fault code found.

Address 16: Steering wheel Labels: 4F0-910-549.lbl
Part No SW: 4F0 910 549 A HW: 4F0 953 549 D
Component: J0527 0410
Revision: 00H03000 Serial number: 90025072990165
Coding: 0032151
Shop #: WSC 02323 758 00200
VCID: 2756017A96AE5A79AE-8072

Subsystem 1 - Part No: XXXXXXXXXXX
Component: E0221 H01 0030

No fault code found.

Address 17: Instruments Labels: 4F0-910-xxx-17.lbl
Part No SW: 4F0 910 930 C HW: 4F0 920 981 S
Component: KOMBIINSTR. M73 H21 0240
Revision: 00700000 Serial number: 73356XR97
Coding: 2257203
Shop #: WSC 47338 001 104857
VCID: 234E156AE296B659F2-8076

No fault code found.

Address 19: CAN Gateway Labels: 4L0-910-468.clb
Part No SW: 4L0 910 468 A HW: 4L0 907 468 C
Component: J533__Gateway H06 0060
Revision: 00H06000 Serial number: 1000D07818801A
Coding: F5D5DEF7737A0600
Shop #: WSC 02335 758 00200
VCID: 2D5AF352B452702954-8078

1 Fault Found:
02095 - Component Protection Active
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 1
Fault Frequency: 1
Reset counter: 185
Mileage: 165456 km
Time Indication: 0
Date: 2016.12.20
Time: 09:25:16

Address 1E: Media Player 2 Labels: 4E0-910-111.lbl
Part No SW: 4E0 910 110 C HW: 4E0 035 110 A
Component: MP3-Changer H46 0350
Revision: 00046006 Serial number: AUZ5ZBG3510145
Shop #: WSC 00000 000 00000
VCID: 183432862BD0E58117-804C

No fault code found.

Address 36: Seat Mem. Drvr Labels: None
Part No SW: 4F0 910 760 HW: 4F0 959 760
Component: Sitzmemory FS H04 0050
Revision: 00000000 Serial number: 00000000896400
Coding: 0082954
Shop #: WSC 02335 758 00200
VCID: 61C25F62B80AE449A0-8034

No fault code found.

Address 37: Navigation Labels: 4E0-910-88x-37.lbl
Part No SW: 4E0 910 888 F HW: 4E0 919 887 M
Component: MNS US H50 0990
Revision: 00000000 Serial number: 395J-077505274
Shop #: WSC 22129 444 52429
VCID: 3162EF22A86A14C970-8064

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 0210
Revision: 00000000 Serial number: Qˆ"
Coding: 0051947
Shop #: WSC 02327 758 00200
VCID: 2C5CFE568F48792143-8078

No fault code found.

Address 46: Central Conv. Labels: 4F0-910-289.lbl
Part No SW: 4F0 910 289 J HW: 4F0 907 289 J
Component: Komfortgeraet H26 0210
Revision: 02100026 Serial number: 01076274210000
Coding: 4618397
Shop #: WSC 02335 785 00200
VCID: 3162EF22A86A14C970-8064

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

1 Fault Found:
01134 - Alarm Horn (H12)
012 - Electrical Fault in Circuit
Freeze Frame:
Fault Status: 01101100
Fault Priority: 3
Fault Frequency: 254
Reset counter: 173
Mileage: 161132 km
Time Indication: 0
Date: 2016.08.25
Time: 06:34:24

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 H10 0240
Revision: PROD_01 Serial number: 00000000059240
Coding: 0000026
Shop #: WSC 02323 785 00200
VCID: 254A0B72ECA248699C-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 C
Component: ILM Beifahrer H12 0100
Revision: Serial number: 00000000037128
Coding: 0012014
Shop #: WSC 02323 758 00200
VCID: 5EB8649E8974DBB19D-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 0210
Revision: 00000000 Serial number: „G"
Coding: 0052075
Shop #: WSC 02327 758 00200
VCID: 2C5CFE568F48792143-8078

No fault code found.

Address 53: Parking Brake Labels: 4F0-910-801.clb
Part No SW: 4F0 910 801 C HW: 4F0 907 801 A
Component: EPB CDEC0080 H04 0080
Revision: --H04—
Coding: 0008022
Shop #: WSC 02145 785 00200
VCID: 20441A66F380AD41EF-8074

No fault code found.

Address 55: Headlight Range Labels: 4F0-910-357.lbl
Part No SW: 4F0 910 357 F HW: 4F0 907 357 F
Component: AFS 1 H01 0020
Revision: 00000001 Serial number:
Coding: 0000016
Shop #: WSC 02325 758 00200
VCID: 2952074280BA6C09B8-807C

Subsystem 1 - Part No: 4F0 941 329 D
Component: AFS-Modul links H01 0010

Subsystem 2 - Part No: 4F0 941 329 D
Component: AFS-Modul rechtsH01 0010

No fault code found.

Address 56: Radio Labels: 4E0-910-541.lbl
Part No SW: 4E0 910 541 Q HW: 4F0 035 541 L
Component: TUNER EU/US/RDW H42 0620
Revision: 00000000 Serial number: 394K4077830887
Coding: 0000002
Shop #: WSC 02323 785 00200
VCID: 2E58F45EB9540B316D-807A

No fault code found.

Address 5C: Lane Maintain. Labels: None
Part No SW: 4E0 910 217 C HW: 4E0 907 217 C
Component: J759 LDW H06 0070
Revision: 00H06012 Serial number: 400207A24000DC
Coding: 0000103
Shop #: WSC 02323 785 00200
VCID: 20441A66F380AD41EF-8074

No fault code found.

Address 61: Battery Regul. Labels: 4F0-910-181.lbl
Part No SW: 4F0 910 181 F HW: 4F0 915 181 B
Component: J0644 BEM H12 0760
Revision: 00000000 Serial number: 00000000029947
Shop #: WSC 22129 444 52429
VCID: 244C1676E798B1618B-8070

Subsystem 1 - Part No: 4F0 915 105 D
Component: von VA0 340612C0A4
Coding: 344630393135313035442056413033343036313243304134
Shop #: WSC 47338 001 1048576

3 Faults Found:
02272 - Quiescent Current Stage 1
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 165796 km
Time Indication: 0
Date: 2017.01.02
Time: 18:21:33

02273 - Quiescent Current Stage 2
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 165796 km
Time Indication: 0
Date: 2017.01.02
Time: 18:27:59

02276 - Quiescent Current Stage 5
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 165796 km
Time Indication: 0
Date: 2017.01.02
Time: 18:28:09

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 0210
Coding: 0051754
Shop #: WSC 02327 758 00200
VCID: 2E58F45EB9540B316D-807A

No fault code found.

Address 65: Tire Pressure Labels: 4F0-910-273-BA.lbl
Part No SW: 4F0 910 273 B HW: 4F0 907 273 A
Component: Reifendruck 3 H05 0100
Revision: 00050100 Serial number: 00000600058526
Coding: 0062725
Shop #: WSC 02335 785 00200
VCID: 2240106EFD8CBF51F9-8076

No fault code found.

Address 67: Voice Control Labels: 4E0-910-75x-67.lbl
Part No SW: 4E0 910 754 Q HW: 4E0 035 753 A
Component: SDS 3501 US H46 0630
Revision: 00000000 Serial number: 00000710240275
Shop #: WSC 12336 024 394758
VCID: 346CE636577821E11B-8060

No fault code found.

Address 6C: Back-up Cam. Labels: 4L0-910-441.clb
Part No SW: 4F0 910 441 HW: 4L0 907 441 A
Component: J772__Rearview 0050
Revision: --H12— Serial number: 525PA8-J7X20HA
Coding: 1000204
Shop #: WSC 02145 785 00200
VCID: 5DBA63928472C0A984-8008

No fault code found.

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 0210
Coding: 0051754
Shop #: WSC 02327 758 00200
VCID: 2E58F45EB9540B316D-807A

No fault code found.

Address 76: Park Assist Labels: 4Fx-910-283.lbl
Part No SW: 4F0 910 283 F HW: 4F0 919 283 F
Component: Parkhilfe 4-Kan H09 0060
Revision: 00H09000 Serial number: 06240730200374
Coding: 0021306
Shop #: WSC 131071 1023 2097151
VCID: 2756017A96AE5A79AE-8072

No fault code found.

Address 77: Telephone Labels: 4E0-910-336.lbl
Part No SW: 4F0 910 336 E HW: 4E0 862 335
Component: Handyvorb2 H18 0950
Revision: 00000000 Serial number: 00000005014673
Coding: 0010900
Shop #: WSC 02335 785 00200
VCID: 254A0B72ECA248699C-8070

No fault code found.

End-------------------------(Elapsed Time: 03:18)--------------------------

#4

I highly doubt that the fuel filter has been changed under warranty unless it was specifically stated. There isn’t any gasoline fuel filter replacement interval that I am aware of because Audi states that they are “lifetime”. Which means they are good until you can prove that they are bad to be replaced under warranty.

These FSI/direct fuel injection fuel injectors have been having issues with sticking open or closed. I largely think that it is caused by carbon buildup getting in there and causing the solenoid to not open/close correctly. The injectors not flowing correctly leads to the high pressure pumps either having to work harder and wear out faster to keep the correct amount of high side fuel pressure built up or the opposite problem of too high of fuel pressure and then the bleed off valves inside the high pressure fuel pumps stick open. Yes if you have one bad injector then you can swap it to diagnose the issue by seeing if the problem follows the suspected bad injector. However from my experience with getting these FSI injectors serviced by companies like Race City Injector is that most all the injectors are not flowing correctly after anything from 30 to 40 thousand miles.

Thanks for sharing all the codes.

#5

Jimmy what would you advise then… Injector servicing every 25,000 miles? Or new ones every 50k or something?

#6

Injector servicing and carbon clean every 30-40K miles for basically all the NA FSI engines. That seems to be a happy medium mileage amount between wasting money for doing it too often and causing issues from waiting too long.

I wouldn’t replace the injectors unless they can’t be serviced and cleaned enough to bring back close enough to normal flow rates. However time restraints might make it worth it to have a second set of injectors so that they can swap out for certain people.

It just doesn’t make sense to do either injector servicing or a carbon clean. They both should be done at the same time to save on labor and make life easier.

#7

Great post jimmy Im trying to get CV to make his post he has in the works about this. The V10 cars see a real high failure rate. If you search every build thread you will see everyone in the V10 community has replaced at least one injector.

If you search you see the S5 guys also have the same issues and from what I have seen looking at ETKA the S5 injectors are the same as the S6 injectors. We have seen tons of RS4 threads where guys are cleaning there injectors and gettting big losses from the injector rate to where the rate is suposed to be.

#8

Great information guys. I replaced the low pressure fuel sensor on Saturday and ran through two containers of Teckron since. Running much better, smoother at cold start as well. I still can get the esp and engine to come back under heavy load in sport mode so not fixed. Seems that fuel filter and pumps come next. Can the pumps be rebuilt easily? Looking forward to getting under the manifold, but not in a hurry. It is shiny new. So I guess I should get use to it - doing the carbon clean myself that is. I’m sure the first time is the worse, but I could glean a bit if satisfaction from cleaning out the v10. I’ll be sure to stay in sport mode all the time to avoid an under revved motor :slight_smile:

#9

If its the fuel code again. I would be careful until you have that sorted out. Running out of fuel is a bad thing.

As for the rebuild on the pumps I dont think anyone has stock rebuilds but if you check I know JHM has rebuild kits for some of there other HPFP units. The only down side there is that those rebuilds would be a high flow upgrade. I dont know if that would require some sort of tune adjustments.

Not to sure if its the pumps as its a rail code if im understanding it correctly the fuel at the rail is low that should be right before the HPFP. So if thats the case you would want to check with the filter and then the LPFP

#10

I really need to get a vag com since it’s a bit of a wait for me to get one from a friend. I cannot confirm the code until then, but excellent point to focus on the low pressure side first if it is indeed the same code. Will let you know.

#11

Well, the vag com will be here Wednesday. I did get the hex-can ‘old’ version although it was hidden on the ross tech site. All of the new units are locked down now to number of vin per cable.

While I wait I’ve been letting the car sit and not really taking it out of the garage. However, last night I did really step on it against any common sense. The engine and esp are constant now and the idle is really not happy; chugging at idle but tightening up and sounding like normal limp mode when moving. I might even think an injector is gone, but not feeling it while moving that I can tell. There is a noise from the y-shaped housing leading to both TB’s. It’s similar to a constant light scraping noise. If I pinch the left side rubber hose the noise stops. Seems odd. Anyway, looking forward to the vag com arriving. Could this have to do with the plastic flaps I’ve heard about?

Does anyone have experience with this y-shaped housing noise? Can post a pic of the house I pinching if helpful. Thanks again for the all the input.

#12

https://uploads.tapatalk-cdn.com/20170121/daf3cb9b9fa4e4b246ef2c5c7363702d.jpg

#13

Did the fuel filter on Sunday and still seeing esp and cel along with a rough idle. So, check the fuel pump and then move to inspecting coil packs? Wednesday is so far away :slight_smile:

#14

VAG arrived today. This is what I’ve got.
Since I’m not seeing any misfires (and after a little searching) the idea of the fuel pump module being bad came up. Any suggestions? Fuel filter replaced and low pressure fuel sensor replaced so far. Much appreciated as always.

4 Faults Found:
000135 - Fuel Rail/System Pressure
P0087 - 002 - Too Low - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100010
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 166447 km
Time Indication: 0
Date: 2017.01.22
Time: 14:02:39

         Freeze Frame:
                RPM: 676 /min
                Load: 25.5 %
                Speed: 0.0 km/h
                Temperature: 68.0°C
                Temperature: 26.0°C
                Absolute Pres.: 990.0 mbar
                Voltage: 13.716 V

008567 - Bank 1; System Too Lean off Idle
P2177 - 001 - - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 166448 km
Time Indication: 0
Date: 2017.01.22
Time: 14:50:13

         Freeze Frame:
                RPM: 571 /min
                Load: 20.8 %
                Speed: 0.0 km/h
                Temperature: 84.0°C
                Temperature: 21.0°C
                Absolute Pres.: 980.0 mbar
                Voltage: 14.097 V

008569 - Bank 2; System Too Lean off Idle
P2179 - 001 - - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 166448 km
Time Indication: 0
Date: 2017.01.22
Time: 14:50:13

         Freeze Frame:
                RPM: 574 /min
                Load: 20.8 %
                Speed: 0.0 km/h
                Temperature: 84.0°C
                Temperature: 21.0°C
                Absolute Pres.: 980.0 mbar
                Voltage: 13.970 V

006435 - Please Check DTC Memory of ECU Number 2
P1923 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 166520 km
Time Indication: 0
Date: 2017.01.25
Time: 16:12:14

         Freeze Frame:
                RPM: 0 /min
                Load: 0.0 %
                Speed: 0.0 km/h
                Temperature: 35.0°C
                Temperature: 32.0°C
                Absolute Pres.: 1010.0 mbar
                Voltage: 11.557 V
#15

Interesting, I thought that the V10s give faults up to bank 3 and 4 because of the exhaust being divided up into so many sections with a bunch of oxygen sensors.

If you could please log measuring value block channels 103, 106, and 140 at idle and then taking off hard at WOT from a stop until the top of second gear. I would do that on a flat portion of the highway when there is little traffic. So pull over and then haul ass when it is safe to do so. That way you likely are still below the highest local highway speed limit. I live in the Nazi police state called the Commonwealth of Virginia so I think about things like that because the idea of going to jail for reckless driving doesn’t appeal to me.

You may have to switch between the different modules to get all of those channels because Audi mixed them up on certain dual ECU engines. In that case it would be great if you could also show channel 3 so we can see engine rpms, throttle position, and mass air flow readings.

#16

Wasn’t able to do the road test last night - hopefully by morning. She is really going to be sad when I stomp on the gas. Guessing won’t get above 3k rpm. Have a great weekend.

#17

Well, I have some numbers. The specified rail pressure is much higher than the actual. The graph for the stop to full acceleration is attached. I also attached the csv for idle. There is a little hesitation when starting now; 2-3 seconds before it actually turns over, even when warm. I couldn’t capture the speed and rpms, but the stop to full accel test didn’t get past 2nd gear and I didn’t want to push any more above 5k. No power.

#18

Having trouble with upload so I put a zip here: http://2ligh324ghu.s3-website-us-west-1.amazonaws.com/fuel-rail-tests-graph.zip

http://2ligh324ghu.s3-website-us-west-1.amazonaws.com/graphs.png

#19

Seems like HPFP from what I can dig up. Just not sure how to test which one it may be or do I need to replace both? :-\

#20

Previous relevant history below. I’m at 103500 now.

01/14/17 - 103485 - low pressure fuel sensor, fuel filter
02/02/16 - 95608 - left/right/upper im gaskets, fuel lines, fuel distributor right, injector repair kit x5 right side (assume all injectors ok?)
06/06/14 - 76821 - new manifold (previous was leaking)
05/16/14 - 76494 - injector 10 replaced
05/08/14 - 76378 - de-carbon all valves