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Misfire cylinder 7

Old 01-07-2014, 07:11 AM
  #1  
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Default Misfire cylinder 7

My misfire happens whenever I punch the accelerator. I first ran some german fuel injector cleaner but this didn't help. My second approach was to swap the coil pack of cylinder 7 with cylinder 6 to see if the misfire moved with the coil pack. Nope, still a misfire on cylinder 7. I then called an audi dealer to get the part number on spark plugs and they gave me ngk 101905621B which I bought online. I just installed these plugs but I'm still getting a cylinder 7 misfire. VCDS is also stating 'random/multiple cylinder misfire detected' along with 'left engine mount solenoid valve.'

When I punch the accelerator with the new plugs my check engine light will flash a few times then goes off, with the old plugs the light would remain illuminated (not sure if this matters.) Could this be anything else other than a bad fuel injector?

Thanks

Tuesday,07,January,2014,10:48:26:64559
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: Release 12.12.0 (x64)
Data version: 20130910


VIN: WAUMV44E27N000480 License Plate: 01/07/2014
Mileage: 150320km-93404mi Repair Order:



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


Chassis Type: 4E (4L0)
Scan: 01 02 03 05 06 07 08 09 0E 0F 15 16 17 19 34 36 37 38 42 46
47 4F 52 53 55 56 61 62 65 67 6C 72 76 77

VIN: WAUMV44E27N000480 Mileage: 150320km/93404miles

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
06-Seat Mem. Pass -- Status: OK 0000
07-Control Head -- Status: Malfunction 0010
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
0E-Media Player 1 -- Status: Malfunction 0010
0F-Digital Radio -- 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
34-Level Control -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
37-Navigation -- Status: OK 0000
38-Roof Electronics -- 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: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Xenon Range -- Status: OK 0000
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: Malfunction 0010
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 Labels: Redir Fail!
Part No SW: 4E1 910 560 A HW: 4E1 907 560
Component: 4.2l V8/4V 0040
Revision: --H16--- Serial number: AUX3Z0F4794048
Coding: 01060009190F0120
Shop #: WSC 02120 444 59087
VCID: 204F14DCF33FCC1EB43-8075

3 Faults Found:
005491 - Left Engine Mount Solenoid Valve (N144)
P1573 - 004 - Open Circuit
Freeze Frame:
Fault Status: 01100100
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 150314 km
Time Indication: 0
Date: 2014.01.07
Time: 10:16:43

Freeze Frame:
RPM: 1442 /min
Load: 18.8 %
Speed: 0.0 km/h
Temperature: 50.0°C
Temperature: 11.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 10.541 V

000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 -
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 150321 km
Time Indication: 0
Date: 2014.01.07
Time: 10:34:55

Freeze Frame:
RPM: 4280 /min
Load: 92.9 %
Speed: 65.0 km/h
Temperature: 85.0°C
Temperature: -6.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 13.970 V

000775 - Cylinder 7
P0307 - 001 - Misfire Detected
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 150321 km
Time Indication: 0
Date: 2014.01.07
Time: 10:34:55

Freeze Frame:
RPM: 4280 /min
Load: 92.9 %
Speed: 65.0 km/h
Temperature: 85.0°C
Temperature: -6.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 13.970 V

Readiness: 0000 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 09L-927-760.lbl
Part No SW: 4E1 910 156 C HW: 09L 927 156 A
Component: AG6 09L 4,2lFSI USA 0010
Revision: --H01--- Serial number: 4183352
Coding: 0000002
Shop #: WSC 02313 785 00200
VCID: 23451BD0E229D706A91-8076

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 4E0-910-517.lbl
Part No SW: 4E0 910 517 B HW: 4E0 614 517 BC
Component: ESP 5.7 allrad H44 0510
Coding: 0007597
Shop #: WSC 02319 000 00000
VCID: 224B1ED4FD33DE0EA27-8077

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. Labels: 4E0-910-131.lbl
Part No SW: 4E0 910 131 HW: 4E0 909 131 L
Component: FBS AUDID3 H10 0190
Revision: 01904910 Serial number: AUX3Z0F4794048
Coding: 0410624
Shop #: WSC 02311 785 00200
VCID: D8BFFC3C6BEFC4DE0C3-808D

Subsystem 1 - Part No: 4E0 905 852 E
Component: ELV 1940

No fault code found.

-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass Labels: None
Part No SW: 4E0 910 760 D HW: 4E0 959 760 B
Component: Sitzmemory BFS H02 0010
Revision: 00000000 Serial number: 5DS 008 795-03
Coding: 4071520
Shop #: WSC 00000 785 00200
VCID: 244718CCE727D03ED0B-8071

No fault code found.

-------------------------------------------------------------------------------
Address 07: Control Head Labels: 4E0-910-7xx-07.lbl
Part No SW: 4E0 910 731 K HW: 4E0 035 729 A
Component: Interfacebox H43 2740
Revision: 00000000 Serial number: 348EU067503467
Coding: 0000003
Shop #: WSC 02313 785 00200
VCID: 295909F880050D56E3D-807C

Subsystem 1 - Part No: 4E0 910 611
Component: E0380 BedienteilH03 0040

Subsystem 2 - Serial number: 00000000008965

Subsystem 3 - Serial number: 0117.05.060000000100010034ÿ

Subsystem 4 - Serial number: 010034ÿ

2 Faults Found:
01327 - Control Module for Parking Aid (J446)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 5
Fault Frequency: 32
Reset counter: 96
Mileage: 149173 km
Time Indication: 0
Date: 2013.12.20
Time: 16:09:26

02873 - Control Module for Back-Up Camera (J772)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 5
Fault Frequency: 1
Reset counter: 80
Mileage: 150069 km
Time Indication: 0
Date: 2013.12.30
Time: 22:42:43


-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: None
Part No SW: 4E0 910 043 B HW: 4E0 820 043 G
Component: KLIMAAUTOMAT 017 0450
Revision: 00000032 Serial number: 00000000170354
Coding: 0037185
Shop #: WSC 02120 444 83870
VCID: 1C37202CDF57E8FE68B-8049

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 4E0-910-279.lbl
Part No SW: 4E0 910 279 Q HW: 4E1 955 113 B
Component: ILM Fahrer H14 0230
Coding: 0143123
Shop #: WSC 02313 785 00200
VCID: 3663D28441BB52AE7EF-8063

Subsystem 1 - Part No: 4E1 910 113 B
Component: Wischer WWS D3 H50 0400
Coding: 00000035
Shop #: WSC 02313

Subsystem 2 - Part No: 4E0 910 557 A Labels: 8K0-955-559.CLB
Component: REGENLICHTSENSORH12 0090
Coding: 00139548
Shop #: WSC 02313

No fault code found.

-------------------------------------------------------------------------------
Address 0E: Media Player 1 Labels: 4E0-910-111.lbl
Part No SW: 4E0 910 111 F HW: 4E0 035 111 A
Component: CD-Changer H44 0470
Revision: 00000000 Serial number: AUZ5ZBF8115165
Shop #: WSC 00000 000 00000
VCID: 1C37202CDF57E8FE68B-8049

1 Fault Found:
02261 - Data Medium
014 - Defective - Intermittent
Freeze Frame:
Fault Status: 00101110
Fault Priority: 7
Fault Frequency: 2
Reset counter: 79
Mileage: 150030 km
Time Indication: 0
Date: 2013.12.30
Time: 21:54:53

Freeze Frame:
Text: 00007B12


-------------------------------------------------------------------------------
Address 0F: Digital Radio Labels: 4E0-910-593-XM.lbl
Part No: 4E0 910 593 A
Shop #: WSC 00000 000 00000
VCID: 254105C8EC1D2936C75


-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4E0-910-655-94.lbl
Part No SW: 4E0 910 655 C HW: 4E0 959 655 J
Component: Airbag 9.41 H12 4030
Revision: 91H12400 Serial number: 0037Q0005X4Z
Coding: 0532707
Shop #: WSC 02120 444 59087
VCID: 264302C4911B222ECEF-8073

Subsystem 1 - Part No: 4E0 910 339
Component: BF-Gewichtsens. H01 0030

Subsystem 2 - Serial number: 36M0P

Subsystem 3 - Serial number: 0001.01.0000H0100000000000ÿ†63

Subsystem 4 - Serial number: 000000ÿ†63328RB40130F884Hÿ†63

Subsystem 5 - Serial number: 0F884Hÿ†63428RB40130F6CDTÿ†63

Subsystem 6 - Serial number: 0F6CDTÿ†63528RB401310D4FHÿ†63

Subsystem 7 - Serial number: 10D4FHÿ†63628RB40130F6FCXÿ†63

Subsystem 8 - Serial number: 0F6FCXÿ†63729RB40120307A6ÿ†63

Subsystem 9 - Serial number: 0307A6ÿ†63829RB40120310B2ÿ

Subsystem 10 - Serial number: 0310B2ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 4E0-910-549.lbl
Part No SW: 4E0 910 549 HW: 4E0 953 549
Component: Lenksäulenmodul H13 0040
Coding: 0012141
Shop #: WSC 02311 785 00200
VCID: E5C1C5C82C9D6936875-80B0

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

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4E0-910-xxx-17.lbl
Part No SW: 4E0 910 951 C HW: 4E0 920 951 C
Component: KOMBIINSTR. VDO H82 0520
Revision: D02 Serial number: AUDID3F4000267
Coding: 0048263
Shop #: WSC 02120 067 57207
VCID: 254105C8EC1D2936C75-8070

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 4L0-910-468.lbl
Part No SW: 4L0 910 468 HW: 4L0 907 468
Component: J533__Gateway H06 0040
Revision: 00H06000 Serial number: 0900B06305805F
Coding: F5D5DF7F307A0E
Shop #: WSC 02313 785 00200
VCID: ECD7B0ECCF77587ED8B-80B9

No fault code found.

-------------------------------------------------------------------------------
Address 34: Level Control Labels: 4E0-910-553.lbl
Part No SW: 4E0 910 553 J HW: 4E0 907 553 F
Component: LUFTFDR.-CDC H06 6310
Coding: 0015510
Shop #: WSC 02313 785 00200
VCID: 2A5BF6F48503064EEA7-807F

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr Labels: None
Part No SW: 4E0 910 760 D HW: 4E0 959 760 B
Component: Sitzmemory FS H02 0010
Revision: 00000000 Serial number: 5DS 008 795-03
Coding: 4071530
Shop #: WSC 00000 785 00200
VCID: 244718CCE727D03ED0B-8071

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation Labels: 4E0-910-88x-37.lbl
Part No SW: 4E0 910 888 C HW: 4E0 919 887 D
Component: MNS US H48 0960
Revision: 00000000 Serial number: 381EJ067500174
Shop #: WSC 02319 444 57473
VCID: 2E53FAE4B9EB6A6E36F-807B

No fault code found.

-------------------------------------------------------------------------------
Address 38: Roof Electronics Labels: 4E0-910-135.lbl
Part No SW: 4E0 910 135 A HW: 4E0 907 135
Component: Dachknoten D3 H04 0090
Serial number: 00000611400035
Coding: 0003477
Shop #: WSC 02313 785 00200
VCID: 1D312D28C44DE1F69F5-8048

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 4E1-910-802-42.lbl
Part No SW: 4E1 910 802 B HW: 4E1 959 801 B
Component: Türsteuer.FS BRM003 0100
Coding: 0032364
Shop #: WSC 00000 785 00200
VCID: 204F14DCF33FCC1EB43-8075

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 4E0-910-289.lbl
Part No SW: 4E0 910 289 D HW: 4E0 907 289 D
Component: Komfortgeraet H07 0010
Revision: 00100007 Serial number: W040605190325
Coding: 0048702
Shop #: WSC 02313 785 00200
VCID: 2A5BF6F48503064EEA7-807F

Subsystem 1 - Part No: 4E0 910 853
Component: Heckdeckel P27H08 0090

Subsystem 2 - Part No: 4E0 907 719
Component: Neigungssensor H05 0020

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System Labels: 4E0-910-223.lbl
Part No SW: 4E0 910 223 P HW: 4E0 035 223 F
Component: DSP-High D3 H02 0070
Revision: PROD_01 Serial number: 00000000000150
Coding: 0000026
Shop #: WSC 02313 785 00200
VCID: 2A5BF6F48503064EEA7-807F

No fault code found.

-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II Labels: None
Part No SW: 4E0 910 280 A HW: 4E0 907 280 A
Component: ILM Beifahrer H11 0070
Revision: Serial number: 00000000085678
Coding: 0010111
Shop #: WSC 02313 785 00200
VCID: 1E332A24C94BFAEE86F-804B

Subsystem 1 - Part No: 4E0 910 511 A
Component: UGDO HL US H04 0050

Subsystem 2 - Serial number: 0253440T153S05

1 Fault Found:
02268 - Switch to Deploy Display Unit
007 - Short to Ground - Intermittent
Freeze Frame:
Fault Status: 00100111
Fault Priority: 4
Fault Frequency: 1
Reset counter: 80
Mileage: 150068 km
Time Indication: 0
Date: 2013.12.31
Time: 10:52:00


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 4E1-910-802-52.lbl
Part No SW: 4E1 910 802 B HW: 4E1 959 802 B
Component: Türsteuer.BF BRM003 0100
Coding: 0032364
Shop #: WSC 00000 785 00200
VCID: 204F14DCF33FCC1EB43-8075

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake Labels: 4E0-910-801.clb
Part No SW: 4E0 910 801 C HW: 4E0 907 801 A
Component: EPB A32C0220 H02 0220
Revision: A32C0220
Coding: 0000922
Shop #: WSC 02120 067 57207
VCID: 1F4D1720CE41F3E68D9-804A

No fault code found.

-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4F0-910-357.lbl
Part No SW: 4F0 910 357 E HW: 4F0 907 357 E
Component: AFS 1 H01 0010
Revision: 00000001 Serial number:
Coding: 0000018
Shop #: WSC 02313 785 00200
VCID: 285F0CFC9B0F345EFC3-807D

Subsystem 1 - Part No: 4F0 941 329 B
Component: AFS-Modul links H02 0020

Subsystem 2 - Part No: 4F0 941 329 B
Component: AFS-Modul rechtsH02 0020

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: 4E0-910-541.lbl
Part No SW: 4E0 910 541 M HW: 4E0 035 541 P
Component: TUNER EU/US/RDW H42 0570
Revision: 00000000 Serial number: 396EW067537081
Coding: 0000002
Shop #: WSC 02313 785 00200
VCID: 2A5BF6F48503064EEA7-807F

No fault code found.

-------------------------------------------------------------------------------
Address 61: Battery Regul. Labels: 4E0-910-181.lbl
Part No SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H12 0550
Revision: 00000000 Serial number: 00000000001845
Shop #: WSC 00000 000 00000
VCID: 204F14DCF33FCC1EB43-8075

Component: von
Coding: 000000000000000000000000000000000000000000000000
Shop #: WSC 00000 000 00000

5 Faults Found:
02272 - Quiescent Current Stage 1
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 150314 km
Time Indication: 0
Date: 2014.01.07
Time: 10:19:46

02273 - Quiescent Current Stage 2
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 150314 km
Time Indication: 0
Date: 2014.01.07
Time: 10:22:05

02276 - Quiescent Current Stage 5
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 150314 km
Time Indication: 0
Date: 2014.01.07
Time: 10:22:15

02274 - Quiescent Current Stage 3
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 150314 km
Time Indication: 0
Date: 2014.01.07
Time: 10:22:25

02277 - Quiescent Current Stage 6
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 150314 km
Time Indication: 0
Date: 2014.01.07
Time: 10:22:35


-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels: 4E0-910-802.lbl
Part No SW: 4E0 910 802 A HW: 4E0 959 801 C
Component: Türsteuer.HL BRM003 0100
Coding: 0032364
Shop #: WSC 00000 785 00200
VCID: 1E332A24C94BFAEE86F-804B

No fault code found.

-------------------------------------------------------------------------------
Address 65: Tire Pressure Labels: 4E0-910-273.lbl
Part No SW: 4E0 910 273 A HW: 4F0 907 273 A
Component: Reifendruck 3 H05
Revision: 00050340 Serial number: 00000900045053
Coding: 0232125
Shop #: WSC 00000 785 00200
VCID: 204F14DCF33FCC1EB43-8075

1 Fault Found:
01521 - Sensor for Tire Pressure
002 - Lower Limit Exceeded
Freeze Frame:
Fault Status: 01100010
Fault Priority: 3
Fault Frequency: 224
Reset counter: 0
Mileage: 149265 km
Time Indication: 0
Date: 2013.12.24
Time: 11:11:13

Freeze Frame:
(no units): 101.0
Temperature: 1.0°C
Error Code: 0
Not Recogn.
Not Recogn.
Not Recogn.
Not Recogn.


-------------------------------------------------------------------------------
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 H45 0630
Revision: 00000000 Serial number: 00000605100281
Shop #: WSC 12336 024 394758
VCID: 3467E88C57C740BE40B-8061

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam. Labels: 4L0-910-441.clb
Part No SW: 4E0 910 441 HW: 4L0 907 441 A
Component: J772__Rearview 0050
Revision: --H12--- Serial number: 525PA8-J64106B
Coding: 1120403
Shop #: WSC 02313 785 00200
VCID: DCB7E02C1FD728FE28B-8089

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels: 4E0-910-802.lbl
Part No SW: 4E0 910 802 A HW: 4E0 959 802 C
Component: Türsteuer.HR BRM003 0100
Coding: 0032364
Shop #: WSC 00000 785 00200
VCID: 1E332A24C94BFAEE86F-804B

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 4E0-910-283.lbl
Part No SW: 4E0 910 283 C HW: 4E0 919 283 C
Component: Parkhilfe 8-Kan H12 0030
Revision: 00H12000 Serial number: 08720612805928
Coding: 0221208
Shop #: WSC 02313 785 00200
VCID: 23451BD0E229D706A91-8076

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone Labels: 4E0-910-336.lbl
Part No SW: 4F0 910 336 H HW: 4E0 862 335
Component: Handyvorb2 H13 1130
Revision: 00000000 Serial number: 00000007532158
Coding: 0010900
Shop #: WSC 02120 444 15553
VCID: 285F0CFC9B0F345EFC3-807D

No fault code found.

End ---------------------------------------------------------------------
Old 01-07-2014, 08:11 AM
  #2  
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Default Bad injector seems logical

Since you have diagnosed the spark plug and coil scenarios pretty definitively. I suppose it could be either a bad connector/wiring to the coil pack or a bad ECU, but those seem pretty low probability compared to an injector scenario as the next step. I would run another bottle of Techron brand fuel cleaner through--24 oz. given the fuel tank size, but at least the (larger) 20 oz. bottle, or else two 12 oz'ers.

Last edited by MP4.2+6.0; 01-07-2014 at 08:14 AM.
Old 01-07-2014, 08:22 AM
  #3  
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I have another bottle of Liqui Moly fuel injector cleaner so I'll run that, I'm at about a 1/4 tank now anyway. I'll grab Techron next time. I sure hope this helps.
Old 01-07-2014, 08:22 AM
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+1
Old 01-07-2014, 08:27 AM
  #5  
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Just like what MP4.2 said the other logical thing is the injector. Since you already swapped the coil pack, the injectors in our cars are so easily accessible so you can swap those too. If the misfire moves then you found yourself a problem. How many miles do you have on the car??
Old 01-07-2014, 10:57 AM
  #6  
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The car has just under 94k on it. All I have for reference at the moment is a subscription to alldata. I haven't checked yet but just how easy is it to swap an injector?
Old 01-07-2014, 01:51 PM
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Originally Posted by a_alyte
The car has just under 94k on it. All I have for reference at the moment is a subscription to alldata. I haven't checked yet but just how easy is it to swap an injector?
Ok that's not real high mileage. To remove the fuel rail there are 4 10mm bolts that holds it on the intake, disconnect all 8 connectors, and disconnect the fuel line on the rail and gently pull it up. Or you if you have enough room, you might not have to remove the fuel line connecting to it. The injectors should be held on by metal clips. Just simply swap the affected cylinder, and put motor oil on the o rings on the ones you're going to swap. Before you put the fuel rail back in, get some motor oil and coat all 8 o rings so it will make it easier to go back in and not have any leaks. Install everything reverse of removal and go from there. It's not a hard job to do. Hope this helps you.
Old 01-07-2014, 02:31 PM
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That doesn't sound too bad at all. A new injector is not that expensive luckily, if it turns out to be the problem. I'll take your advice and see what happens, this problem has been hindering my attempts at spirited driving.
Old 01-07-2014, 02:50 PM
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Originally Posted by a_alyte
That doesn't sound too bad at all. A new injector is not that expensive luckily, if it turns out to be the problem. I'll take your advice and see what happens, this problem has been hindering my attempts at spirited driving.
Yea its not. Sounds like you're mechanically handy. I hope that's the problem and works out for you. You could go on audiwholesaleparts.com and get one cheaper than dealer prices and a little cost for shipping. Chance of them being aftermarket is slim to none. Worth a shot if that's the problem. Don't buy one just yet until you do that test lol.
Old 01-07-2014, 03:07 PM
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Have you done many injector swaps? Your description sound pretty simple, but it cost me near $800 at my Indy shop on my 07.

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