Hello All,
I am trying to troubleshoot "P0172-008" and "P0175-008" codes in my V8 Audi R8. Here is background story.
I acquired the car last year and decided to do a little tune up. This tune-up included replacing spark plugs, coil packs, new air filters, performing carbon cleaning of intake valves and replacing PCV/Air-Oil separator device (OEM replacement). Fuel injectors were pulled and sent for ultrasonic cleaning and flow-matching. Seals were replaced on the injectors. After I assembled everything, car fired up and is running smoothly. However I started having those "P0172-008" and "P0175-008" codes and after I clear these codes it takes about a week for the error codes to come back. These codes were not present before tune-up.
I tried to use VCDS to see if I can get some clue as if it is an injector issue, vacuum leak issue or MAF problem. When I tried to run 'Fuel Supply System' test, it passed on Bank 2 but failed for Bank 1 (image attached). I am also attaching the images of fuel trim.
So I was wondering;
1) What does "Group 107 - Fuel Injection (Fuel Supply System)" test for? Does it run test on injectors or fuel pump or may be on anything else? Is there anyway to narrow down the cause of not passing test any further? Is it possible to check for injector performance or fuel pump flow rate in VCDS?
2) In the error code "P0172-008" what does '008' indicates? Does '008' narrows down the cause of system running to rich?
Thanks.
Following is the Autos-can:
I am trying to troubleshoot "P0172-008" and "P0175-008" codes in my V8 Audi R8. Here is background story.
I acquired the car last year and decided to do a little tune up. This tune-up included replacing spark plugs, coil packs, new air filters, performing carbon cleaning of intake valves and replacing PCV/Air-Oil separator device (OEM replacement). Fuel injectors were pulled and sent for ultrasonic cleaning and flow-matching. Seals were replaced on the injectors. After I assembled everything, car fired up and is running smoothly. However I started having those "P0172-008" and "P0175-008" codes and after I clear these codes it takes about a week for the error codes to come back. These codes were not present before tune-up.
I tried to use VCDS to see if I can get some clue as if it is an injector issue, vacuum leak issue or MAF problem. When I tried to run 'Fuel Supply System' test, it passed on Bank 2 but failed for Bank 1 (image attached). I am also attaching the images of fuel trim.
So I was wondering;
1) What does "Group 107 - Fuel Injection (Fuel Supply System)" test for? Does it run test on injectors or fuel pump or may be on anything else? Is there anyway to narrow down the cause of not passing test any further? Is it possible to check for injector performance or fuel pump flow rate in VCDS?
2) In the error code "P0172-008" what does '008' indicates? Does '008' narrows down the cause of system running to rich?
Thanks.
Following is the Autos-can:
Code:
Thursday,10,October,2024,15:42:31:42728
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 23.3.1.0 (x64) HEX-V2 CB: 0.4631.4
Data version: 20230421 DS346.2
www.Ross-Tech.com
VIN: WUAAU34268N004626 License Plate:
Chassis Type: 42 (1K0)
Scan: 01 03 08 09 0F 11 31 14 15 16 17 19 25 37 42 46 47 52 56 65
6C 76 77
VIN: WUAAU34268N004626 Mileage: 118780km-73806miles
01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
0F-Digital Radio -- Status: Malfunction 0010
11-Engine II -- Status: Malfunction 0010
31-Engine other -- Status: Malfunction 0010
14-Susp. Elect. -- 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
25-Immobilizer -- Status: OK 0000
37-Navigation -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
65-Tire Pressure -- Status: Malfunction 0010
6C-Back-up Cam. -- Status: Malfunction 0010
76-Park Assist -- Status: OK 0000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine ( ) Labels:. 079-910-560-BYH1.clb
Part No SW: 420 910 560 A HW: 420 907 560
Component: 4.2L V8/4V FSI ª0100
Revision: 5DH06--- Serial number: AUX7Z0H0FNF0R2
Coding: 01100009180F0120
Shop #: WSC 08354 444 84041
VCID: 0C41B57A7A4139EA633-8058
VINID: 9E54519431021887800041821856D96042
2 Faults Found:
000370 - Fuel Trim; Bank 1
P0172 - 008 - System Too Rich - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 118727 km
Time Indication: 0
Date: 2024.09.25
Time: 13:26:07
Freeze Frame:
RPM: 708 /min
Load: 43.5 %
Speed: 0.0 km/h
Temperature: 61.0°C
Temperature: 27.0°C
Absolute Pres.: 980.0 mbar
Voltage: 14.097 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: 118781 km
Time Indication: 0
Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 28.0°C
Temperature: 28.0°C
Absolute Pres.: 990.0 mbar
Voltage: 12.192 V
Readiness: 0000 0001
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 420-910-517.lbl
Part No SW: 420 910 517 A HW: 420 614 517
Component: ESP8 quattro H01 0260
Revision: 00000000 Serial number: 00000000000000
Coding: 0000258
Shop #: WSC 02197 785 00200
VCID: 0E45BF720C5D0BFA8D7-805A
5 Faults Found:
00283 - ABS Wheel Speed Sensor; Front Left (G47)
003 - Mechanical Failure - Intermittent
Freeze Frame:
Fault Status: 00100011
Fault Priority: 2
Fault Frequency: 1
Reset counter: 167
Mileage: 118771 km
Time Indication: 0
Date: 2024.10.09
Time: 07:20:27
Freeze Frame:
Hex Value: 0x1600
Hex Value: 0x4302
Hex Value: 0x0006
Hex Value: 0xA8A8
Hex Value: 0x0000
01683 - Wheel Speed Signals / Vehicle Speed
008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 2
Fault Frequency: 17
Reset counter: 165
Mileage: 118306 km
Time Indication: 0
Date: 2024.07.18
Time: 12:26:06
Freeze Frame:
Hex Value: 0x1B00
Hex Value: 0x4302
Hex Value: 0x000A
Hex Value: 0x21AA
Hex Value: 0x0000
00285 - ABS Wheel Speed Sensor; Front Right (G45)
003 - Mechanical Failure - Intermittent
Freeze Frame:
Fault Status: 00100011
Fault Priority: 2
Fault Frequency: 25
Reset counter: 167
Mileage: 118508 km
Time Indication: 0
Date: 2024.08.16
Time: 17:50:28
Freeze Frame:
Hex Value: 0x3400
Hex Value: 0x4302
Hex Value: 0x0007
Hex Value: 0xA8A9
Hex Value: 0x0000
01766 - Brake Control Module - Regulation Difference
008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 1
Fault Frequency: 1
Reset counter: 159
Mileage: 118662 km
Time Indication: 0
Date: 2024.08.29
Time: 07:08:47
Freeze Frame:
Hex Value: 0x1200
Hex Value: 0x4312
Hex Value: 0x0021
Hex Value: 0x50A9
Hex Value: 0x0000
00532 - Supply Voltage B+
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 3
Fault Frequency: 1
Reset counter: 163
Mileage: 118727 km
Time Indication: 0
Date: 2024.08.31
Time: 07:17:08
Freeze Frame:
Hex Value: 0x00C0
Hex Value: 0x4382
Hex Value: 0x0003
Hex Value: 0x1660
Hex Value: 0x0000
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 420-820-043.clb
Part No SW: 420 820 043 C HW: 420 820 043 C
Component: J255 Klima 1 Zone 0070
Revision: 00H04005 Serial number: 00000001076483
Coding: 1572904
Shop #: WSC 02197 785 00200
VCID: 0A4DB362703527DA51F-805E
No fault code found.
-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels:. 8P0-907-279-30-H.lbl
Part No SW: 8P0 907 279 L HW: 8P0 907 279 L
Component: Bordnetz-SG H45 1901
Revision: 00H45000 Serial number: 00000008004823
Coding: F4041E83C01424000B0000000A800000000000005B06D282000000000000
Shop #: WSC 02556 785 00200
VCID: 46D5475224AD83BA757-8012
Subsystem 1 - Part No: 423 955 113 Labels: 1KX-955-119.CLB
Component: Wischer AudiR8 H22 0040
Coding: 00022802
Shop #: WSC 02556
Subsystem 2 - Part No: 8K0 910 557 Labels: 8K0-955-559.CLB
Component: REGENLICHTSENSORH04 0002
Coding: 00154418
Shop #: WSC 02556
No fault code found.
-------------------------------------------------------------------------------
Address 0F: Digital Radio Labels: 8E0-035-593-SIR.lbl
Part No SW: 8E0 035 593 M HW: 8E0 035 593 M
Component: SDAR SIRIUS H07 0150
Revision: 00000000 Serial number: AUZ4Z7H0241749
Coding: 0000100
Shop #: WSC 02197 785 00200
VCID: 33330E86473F0612C29-8066
1 Fault Found:
02635 - Tuner Not Enabled/Activated
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 77
Mileage: 117961 km
Time Indication: 0
Date: 2023.10.09
Time: 11:38:30
-------------------------------------------------------------------------------
Address 11: Engine II Labels:. 079-910-560-BYH2.clb
Part No SW: 420 910 560 A HW: 420 907 560
Component: 4.2L V8/4V FSI ª0100
Revision: 5DH06--- Serial number: AUX7Z0H0FNF0R2
Coding: 01100009180F0120
Shop #: WSC 08354 444 84041
VCID: 0C41B57A7A4139EA633-8058
1 Fault Found:
000373 - Fuel Trim; Bank 2
P0175 - 008 - System Too Rich - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 118727 km
Time Indication: 0
Date: 2024.09.10
Time: 15:09:06
Freeze Frame:
RPM: 730 /min
Load: 41.9 %
Speed: 0.0 km/h
Temperature: 62.0°C
Temperature: 28.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.970 V
-------------------------------------------------------------------------------
Address 14: Susp. Elect. Labels: 8P0-907-376.lbl
Part No SW: 420 910 376 HW: 420 907 376
Component: J250 Raddaempfung 0080
Revision: --H13--- Serial number: 190DPH 7306002
Coding: 0000062
Shop #: WSC 02197 785 00200
VCID: 50F9610AD6E95D0ADFB-8004
1 Fault Found:
01316 - ABS Control Module
013 - Check DTC Memory - MIL ON
Freeze Frame:
Fault Status: 11101101
Fault Priority: 2
Fault Frequency: 18
Reset counter: 127
Mileage: 118392 km
Time Indication: 0
Date: 2024.07.25
Time: 23:55:09
Freeze Frame:
Voltage: 11.88 V
Speed: 0.0 km/h
Voltage: 4.99 V
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 420-959-655.lbl
Part No SW: 420 959 655 HW: 420 959 655
Component: SN Airbag 9.43 H01 0020
Revision: 93H01002 Serial number: 003B80004PY%
Coding: 0021326
Shop #: WSC 02197 785 00200
VCID: 5DE7883E913BE06244D-8008
Subsystem 1 - Part No: 8J0 910 339 A
Component: BF-Gewichtsens. H02 0030
Subsystem 2 - Serial number: 01JNT
Subsystem 3 - Serial number: 0001.01.0000H0200000000000ÿ†63
Subsystem 4 - Serial number: 000000ÿ†63328RB403465C5DQÿ†63
Subsystem 5 - Serial number: 65C5DQÿ†63428RB403465BD8Tÿ†63
Subsystem 6 - Serial number: 65BD8Tÿ†63747RB40369997D$ÿ†63
Subsystem 7 - Serial number: 9997D$ÿ†63847RB403699EBC5ÿ
Subsystem 8 - Serial number: 99EBC5ÿ
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8P0-953-549-F.lbl
Part No SW: 8P0 953 549 F HW: 8P0 953 549 F
Component: J0527 H36 0070
Coding: 0004041
Shop #: WSC 02197 785 00200
VCID: 41DF544E0D83A482405-8014
Subsystem 1 - Part No: XXXXXXXXXXX
Component: E0221 H06 0030
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 420-920-xxx-17.clb
Part No SW: 420 920 980 E HW: 420 920 980 E
Component: KOMBIINSTR. VDO H35 0160
Revision: D0H35002 Serial number: 2240H002100222
Coding: 0069272
Shop #: WSC 08354 067 57207
VCID: 176BDA163387CA32DE1-8042
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels:. 1K0-907-530-V3.clb
Part No SW: 1K0 907 530 P HW: 1K0 907 951
Component: J533__Gateway H16 0192
Revision: H16 Serial number: 2500K0831681FD
Coding: AB881F0F5047024100
Shop #: WSC 08214 444 58965
VCID: 34310D9A4231012ADB3-8060
No fault code found.
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb
Part No SW: 420 920 980 E HW: 420 920 980 E
Component: KOMBIINSTR. VDO H35 0160
Revision: D0H35002 Serial number: AUX7Z0H0FNF0R2
Shop #: WSC 00000 000 00000
VCID: 176BDA163387CA32DE1-8042
No fault code found.
-------------------------------------------------------------------------------
Address 37: Navigation Labels: 8E0-035-192-RNSE.clb
Part No SW: 423 035 192 F HW: 423 035 192 F
Component: RNS-E US H13 0260
Revision: 06S Serial number: AUZBZ7H3900016
Coding: 0710677
Shop #: WSC 02197 785 00200
VCID: 1373AE06277FE612A29-8046
2 Faults Found:
00858 - Connection; Radio Intermediate Frequency (IF) Output to Antenna Amplifier
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 1
Reset counter: 77
Mileage: 117961 km
Time Indication: 0
Date: 2023.10.09
Time: 11:38:39
Freeze Frame:
Mileage: 117960 km
Count: 910
Clock: 11:38
01316 - ABS Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 5
Fault Frequency: 84
Reset counter: 167
Mileage: 117961 km
Time Indication: 0
Date: 2023.10.20
Time: 11:51:46
Freeze Frame:
Bin. Bits: 0000
Mileage: 118780 km
Count: 910
Clock: 15:37
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 8P0-959-801-MAX1.lbl
Part No: 420 959 801
Component: Tuer-SG H02 0060
Coding: 0001141
Shop #: WSC 02197 785 00200
VCID: 56F59712F40D333A057-8002
No fault code found.
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels:. 8J0-959-433.lbl
Part No: 8J0 959 433 C
Component: KSG H11 0080
Coding: 1B90228001382D090F0FC88A0473
Shop #: WSC 02197 785 00200
VCID: 36353792544D133AE57-8062
Subsystem 1 - Component: Sounder No Answer
Subsystem 2 - Component: NGS n.mounted
Subsystem 3 - Component: IRUE n.mounted
2 Faults Found:
01134 - Alarm Horn (H12)
004 - No Signal/Communication
01565 - Luggage Compartment Light (W3)
007 - Short to Ground
-------------------------------------------------------------------------------
Address 47: Sound System Labels: 420-035-223.lbl
Part No SW: 420 035 223 D HW: 420 035 223 A
Component: J525 Amp High H14 0230
Revision: 00H14001 Serial number: 34842000519004
Coding: 0246111
Shop #: WSC 08354 444 84041
VCID: 094F8C6E75332CC2585-805C
No fault code found.
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 8P0-959-802-MAX1.lbl
Part No: 420 959 802
Component: Tuer-SG H02 0060
Coding: 0001141
Shop #: WSC 02197 785 00200
VCID: 57EB9A16F3070A321E1-8002
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-192-RNSE.clb
Part No SW: 423 035 192 F HW: 423 035 192 F
Component: RNS-E US H13 0260
Revision: 06S Serial number: AUZBZ7H3900016
Coding: 0710677
Shop #: WSC 02197 785 00200
VCID: 1373AE06277FE612A29-8046
2 Faults Found:
00858 - Connection; Radio Intermediate Frequency (IF) Output to Antenna Amplifier
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 1
Reset counter: 77
Mileage: 117961 km
Time Indication: 0
Date: 2023.10.09
Time: 11:38:39
Freeze Frame:
Mileage: 117960 km
Count: 910
Clock: 11:38
01316 - ABS Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 5
Fault Frequency: 84
Reset counter: 167
Mileage: 117961 km
Time Indication: 0
Date: 2023.10.20
Time: 11:51:46
Freeze Frame:
Bin. Bits: 0000
Mileage: 118780 km
Count: 910
Clock: 15:37
-------------------------------------------------------------------------------
Address 65: Tire Pressure Labels: None
Part No SW: 420 910 273 HW: 4F0 907 273 A
Component: Reifendruck 3 H05 0030
Revision: 00050030 Serial number: 00000700002937
Coding: 0462426
Shop #: WSC 01405 444 59564
VCID: 4CC1757A3AC179EAA33-8018
2 Faults Found:
01521 - Sensor for Tire Pressure
004 - No Signal/Communication - MIL ON
Freeze Frame:
Fault Status: 11100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 103
Mileage: 118395 km
Time Indication: 0
Date: 2024.07.26
Time: 00:03:01
Freeze Frame:
(no units): 0.0
Voltage: 13.70 V
(no units): 61.0
Not Recogn.
Not Recogn.
Not Recogn.
Not Recogn.
02214 - Tire Pressure Warning
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 1
Fault Frequency: 253
Reset counter: 0
Mileage: 118395 km
Time Indication: 0
Date: 2024.07.26
Time: 00:03:02
Freeze Frame:
(no units): 0.0
Temperature: 21.0°C
Error Code: 1
Not Recogn.
Not Recogn.
Not Recogn.
Not Recogn.
-------------------------------------------------------------------------------
Address 6C: Back-up Cam. Labels: 420-910-441.clb
Part No SW: 420 910 441 HW: 7L6 907 441 C
Component: J772__Rearview 0040
Revision: --H13--- Serial number: 525PA8-J7Z603M
Coding: 1000412
Shop #: WSC 02197 785 00200
VCID: 49CF4C6E35B36CC2985-801C
1 Fault Found:
02203 - Audio / Video Input 1
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 4
Fault Frequency: 1
Reset counter: 77
Mileage: 117961 km
Time Indication: 0
Date: 2023.10.09
Time: 11:38:19
Freeze Frame:
Term 15 On
Reverse OFF
Count: 3
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 8P0-919-283.lbl
Part No SW: 8P0 919 283 B HW: 8P0 919 283 B
Component: Parkhilfe 8-Kan H12 0020
Revision: 00H12000 Serial number: 00067767830730
Coding: 0000251
Shop #: WSC 131071 1023 2097151
VCID: 3A2D23A26055F75A01F-806E
No fault code found.
-------------------------------------------------------------------------------
Address 77: Telephone Labels: 8P0-862-335.lbl
Part No SW: 8P0 862 335 R HW: 8P0 862 335 R
Component: FSE_255x BT H26 0350
Revision: 00000000 Serial number: 00000005057040
Coding: 0011477
Shop #: WSC 02556 785 00200
VCID: 45D7405E19AB88A27CD-8010
No fault code found.
Last edited:
