'08 A4 2.0T misfiring under load, typically in cold weather

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   #1  

robert5995

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Hi, All -

I have had this problem for some time. To an old-timey mechanic, it would seem that the O2 sensor fault may be leaning out the engine under certain conditions, leading the the misfiring. What do I need to replace? Thanks!

- Rob

Code:
Saturday,08,June,2019,06:44:24:61379
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 18.9.1.0 (x64)  HEX-V2 CB: 0.4437.4
Data version: 20190114 DS296.0
www.Ross-Tech.com


VIN: WAUDF78E68A163103   License Plate: 
Mileage: 102440km-63653mi   Repair Order: A4 6.8.19



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


Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN: WAUDF78E68A163103   Mileage: 102440km-63653miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels:. 06F-907-115-AXX.clb
   Part No SW: 8E1 910 115 G    HW: 8E0 907 115 D
   Component: 2.0l R4/4V TFSI     0010  
   Revision: 5EH15---    Serial number: XXXXXXXXXXXXXX
   Coding: 0104010A180F0120
   Shop #: WSC 65728 1018 854933
   VCID: 2616FE2564E9F107C41-8072

5 Faults Found:
000768 - Random/Multiple Cylinder Misfire Detected 
               P0300 - 001 -  - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 255
                    Mileage: 99693 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 3730 /min
                    Load: 100.0 %
                    Speed: 78.0 km/h
                    Temperature: 89.0°C
                    Temperature: 22.0°C
                    Absolute Pres.: 840.0 mbar
                    Voltage: 14.097 V

000769 - Cylinder 1 
               P0301 - 001 - Misfire Detected - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 99693 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1311 /min
                    Load: 45.9 %
                    Speed: 0.0 km/h
                    Temperature: 14.0°C
                    Temperature: 14.0°C
                    Absolute Pres.: 780.0 mbar
                    Voltage: 14.224 V

000772 - Cylinder 4 
               P0304 - 001 - Misfire Detected - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 102006 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 3730 /min
                    Load: 100.0 %
                    Speed: 78.0 km/h
                    Temperature: 89.0°C
                    Temperature: 22.0°C
                    Absolute Pres.: 840.0 mbar
                    Voltage: 14.097 V

004372 - Oxygen (Lambda) Sensor; B1 S2 
               P1114 - 008 - Internal Resistance too High - Intermittent
             Freeze Frame:
                    Fault Status: 00101000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 102310 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 2535 /min
                    Load: 7.1 %
                    Speed: 116.0 km/h
                    Temperature: 93.0°C
                    Temperature: 12.0°C
                    Absolute Pres.: 670.0 mbar
                    Voltage: 14.224 V

000320 - Oxygen (Lambda) Sensor B1 S2 
               P0140 - 004 - No Activity - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 102310 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 2535 /min
                    Load: 6.3 %
                    Speed: 116.0 km/h
                    Temperature: 93.0°C
                    Temperature: 12.0°C
                    Absolute Pres.: 670.0 mbar
                    Voltage: 14.224 V
 
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   #2  

Uwe

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The sensor your ECU is complaining about is the second sensor in the exhaust stream, that's generally the one behind the CAT. Given the nature of these fault codes though, I'd double-check the intergity of the wiring and maybe hit the connectors with some contact conditioner before condemning it.

-Uwe-
 
   #3  

robert5995

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Thanks, Uwe -

I will look into and get back to this thread!

- Rob
 
   #4  

Jack@European_Parts

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OXS contaminated with crystalization from misfire and misfire most likely from faulty ignition components, sump incorrect hydrostatics from fuel contaminated, faulty n80 or flat out fuel system failure.


Please post a complete auto-scan and obd2 data for mode 1-1, 3, 7 & 9
 
   #5  

robert5995

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Hi, Jack -

Here is the rest of the scan that I did the other day. I didn't include it in my first post for the sake of brevity. Is this what you were looking for from me? Thanks, Jack!

- Rob

Code:
-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-910-517.clb
   Part No SW: 8E0 910 517 J    HW: 8E0 614 517 BH
   Component: ESP8 quattro    H06 0140  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0004526
   Shop #: WSC 06335 000 00000
   VCID: 2E0606054C19B9473C1-807A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 BM
   Component:   A4 Klimaautomat   3233  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 6D84C109848F025F45B-5118

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
   Part No: 8E0 907 279 N
   Component: int. Lastmodul  USA 0907  
   Coding: 00003
   Shop #: WSC 06335  
   VCID: 3D243149946F52DFB5B-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 0F: Digital Radio        Labels: 8E0-035-593-SIR.lbl
   Part No SW: 8E0 035 593 N    HW: 8E0 035 593 N
   Component: SDAR SIRIUS         0150  
   Serial number: AUZ4Z7H0279217
   Shop #: WSC 00000 000 00000
   VCID: 3432146DA21593974A5-5160

1 Fault Found:
02635 - Tuner Not Enabled/Activated 
            000 -  - 

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-94.lbl
   Part No SW: 8E0 959 655 M    HW: 8E0 959 655 M
   Component:    Airbag 9.41  H01 4240  
   Revision: 91H01424    Serial number: 003CS000H37R  
   Coding: 0032607
   Shop #: WSC 06335 000 00000
   VCID: 41DC4DB9ED87363FD13-8014

   Subsystem 1 - Part No: 8E0 910 339 D
   Component: BF-Gewichtsens. H03 0080

   Subsystem 2 - Serial number: 02ARF         

   Subsystem 3 - Serial number: 0001.01.0000H0300000000000ÿ†63

   Subsystem 4 - Serial number: 000000ÿ†6332DRB406EC0725Tÿ†63

   Subsystem 5 - Serial number: C0725Tÿ†6342DRB406EE502D ÿ†63

   Subsystem 6 - Serial number: E502D ÿ†6352ARB403A6569EZÿ†63

   Subsystem 7 - Serial number: 6569EZÿ†6362ARB403A67601Gÿ†63

   Subsystem 8 - Serial number: 67601Gÿ†63729RB403B32369Kÿ†63

   Subsystem 9 - Serial number: 32369Kÿ†63829RB403B32358Jÿ

   Subsystem 10 - Serial number: 32358Jÿ

3 Faults Found:
01213 - Belt Tensioner Igniter; Rear Middle (N198) 
            001 - Upper Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 39
                    Time Indication: 0

01221 - Crash Sensor Side Airbag; Driver Side (G179) 
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 2
                    Fault Frequency: 11
                    Reset counter: 39
                    Time Indication: 0

00532 - Supply Voltage B+ 
            002 - Lower Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 2
                    Fault Frequency: 64
                    Reset counter: 39
                    Time Indication: 0


-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 Q
   Component: Lenksáulenmodul     0801  
   Coding: 04041
   Shop #: WSC 06335  
   VCID: 41DC4DB9E897363FD13-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 951 N    HW: 8E0 920 951 N
   Component: KOMBI+WFS 4     H14 0200  
   Revision: 0200        Serial number: 00000000000000
   Coding: 0023268
   Shop #: WSC 20205 444 53927
   VCID: 35342969A95F8A9F7DB-5118

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 951 N    HW: 8E0 920 951 N
   Component: KOMBI+WFS 4     H14 0200  
   Revision: 0200        Serial number: 00000000000000
   Coding: 0023268
   Shop #: WSC 20205 444 53927
   VCID: 35342969A95F8A9F7DB-5118

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8E0 959 433 CP
   Component: Komfortgerát T7B    4336  
   Coding: 11788
   Shop #: WSC 06335  
   VCID: 015C8DB9A817F63F913-4AA4

   Subsystem 1 - Part No: 8E1959801G
   Component: Tõrsteuer.FS BRM 0706  

   Subsystem 2 - Part No: 8E1959802G
   Component: Tõrsteuer.BF BRM 0706  

   Subsystem 3 - Part No: 8E0959801E
   Component: Tõrsteuer.HL BRM 0606  

   Subsystem 4 - Part No: 8E0959802E
   Component: Tõrsteuer.HR BRM 0606  

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 8J0-035-1xx-56.clb
   Part No SW: 8E0 035 195 AF    HW: 8E0 035 195 AF
   Component: R Symphony2+    H04 0270  
   Revision: 00H04000    Serial number: AUZ1Z4H7757051
   Coding: 0650012
   Shop #: WSC 06335 000 00000
   VCID: 6B80CF11BFAB0C6F5BF-5160

2 Faults Found:
01044 - Control Module Incorrectly Coded 
            000 -  - 
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 255
                    Time Indication: 15

00856 - Radio Antenna 
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 5
                    Fault Frequency: 10
                    Reset counter: 8
                    Time Indication: 15


-------------------------------------------------------------------------------
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: 00000005070344
   Coding: 0001677
   Shop #: WSC 06335 000 00000
   VCID: 45D459A9F9BF1A1FEDB-50D0

No fault code found.

End----------(Elapsed Time: 05:28, VBatt start/end: 12.3V/12.3V)-----------
 
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   #6  

robert5995

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Hi, Jack -

duplicate post, sorry.
 
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   #7  

Jack@European_Parts

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It is not & a fragment.



Additionally OBD2 modes.

mainscreen01.png



obd2-open.png
 
   #8  

robert5995

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Hi, Jack -

Clearly I have lots to learn about this wonderful software!

Below, please find a full scan, modes 1-1, 3, 7, and 9. I hope this helps.

Code:
Sunday,09,June,2019,15:20:37:61379
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 19.6.0.4 (x64)  HEX-V2 CB: 0.4505.4
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN: WAUDF78E68A163103   License Plate: 
Mileage: 102440km-63653mi   Repair Order: 6.9.2019 A4 full scan


Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN: WAUDF78E68A163103   Mileage: 102440km-63653miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels:. 06F-907-115-AXX.clb
   Part No SW: 8E1 910 115 G    HW: 8E0 907 115 D
   Component: 2.0l R4/4V TFSI     0010  
   Revision: 5EH15---    Serial number: XXXXXXXXXXXXXX
   Coding: 0104010A180F0120
   Shop #: WSC 65728 1018 854933
   VCID: 2616FE2564E9F10790B-8072

5 Faults Found:
000768 - Random/Multiple Cylinder Misfire Detected 
               P0300 - 001 -  - Intermittent
000769 - Cylinder 1 
               P0301 - 001 - Misfire Detected - Intermittent
000772 - Cylinder 4 
               P0304 - 001 - Misfire Detected - Intermittent
004372 - Oxygen (Lambda) Sensor; B1 S2 
               P1114 - 008 - Internal Resistance too High - Intermittent
000320 - Oxygen (Lambda) Sensor B1 S2 
               P0140 - 004 - No Activity - Intermittent
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-910-517.clb
   Part No SW: 8E0 910 517 J    HW: 8E0 614 517 BH
   Component: ESP8 quattro    H06 0140  
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0004526
   Shop #: WSC 06335 000 00000
   VCID: 2E0606054C19B94768B-807A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 BM
   Component:   A4 Klimaautomat   3233  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 6D84C109848F025F111-50F4

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
   Part No: 8E0 907 279 N
   Component: int. Lastmodul  USA 0907  
   Coding: 00003
   Shop #: WSC 06335  
   VCID: 3D243149946F52DFE11-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 0F: Digital Radio        Labels: 8E0-035-593-SIR.lbl
   Part No SW: 8E0 035 593 N    HW: 8E0 035 593 N
   Component: SDAR SIRIUS         0150  
   Serial number: AUZ4Z7H0279217
   Shop #: WSC 00000 000 00000
   VCID: 3432146DA21593971EF-5160

1 Fault Found:
02635 - Tuner Not Enabled/Activated 
            000 - -

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-94.lbl
   Part No SW: 8E0 959 655 M    HW: 8E0 959 655 M
   Component:    Airbag 9.41  H01 4240  
   Revision: 91H01424    Serial number: 003CS000H37R  
   Coding: 0032607
   Shop #: WSC 06335 000 00000
   VCID: 41DC4DB9ED87363F859-8014

   Subsystem 1 - Part No: 8E0 910 339 D
   Component: BF-Gewichtsens. H03 0080

   Subsystem 2 - Serial number: 02ARF         

   Subsystem 3 - Serial number: 0001.01.0000H0300000000000ÿ†63

   Subsystem 4 - Serial number: 000000ÿ†6332DRB406EC0725Tÿ†63

   Subsystem 5 - Serial number: C0725Tÿ†6342DRB406EE502D ÿ†63

   Subsystem 6 - Serial number: E502D ÿ†6352ARB403A6569EZÿ†63

   Subsystem 7 - Serial number: 6569EZÿ†6362ARB403A67601Gÿ†63

   Subsystem 8 - Serial number: 67601Gÿ†63729RB403B32369Kÿ†63

   Subsystem 9 - Serial number: 32369Kÿ†63829RB403B32358Jÿ

   Subsystem 10 - Serial number: 32358Jÿ

3 Faults Found:
01213 - Belt Tensioner Igniter; Rear Middle (N198) 
            001 - Upper Limit Exceeded - Intermittent
01221 - Crash Sensor Side Airbag; Driver Side (G179) 
            011 - Open Circuit - Intermittent
00532 - Supply Voltage B+ 
            002 - Lower Limit Exceeded - Intermittent

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 Q
   Component: Lenksáulenmodul     0801  
   Coding: 04041
   Shop #: WSC 06335  
   VCID: 41DC4DB9E897363F859-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 951 N    HW: 8E0 920 951 N
   Component: KOMBI+WFS 4     H14 0200  
   Revision: 0200        Serial number: 00000000000000
   Coding: 0023268
   Shop #: WSC 20205 444 53927
   VCID: 35342969A95F8A9F291-5118

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 951 N    HW: 8E0 920 951 N
   Component: KOMBI+WFS 4     H14 0200  
   Revision: 0200        Serial number: 00000000000000
   Coding: 0023268
   Shop #: WSC 20205 444 53927
   VCID: 35342969A95F8A9F291-5118

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8E0 959 433 CP
   Component: Komfortgerát T7B    4336  
   Coding: 11788
   Shop #: WSC 06335  
   VCID: 015C8DB9A817F63FC59-4AA4

   Subsystem 1 - Part No: 8E1959801G
   Component: Tõrsteuer.FS BRM 0706  

   Subsystem 2 - Part No: 8E1959802G
   Component: Tõrsteuer.BF BRM 0706  

   Subsystem 3 - Part No: 8E0959801E
   Component: Tõrsteuer.HL BRM 0606  

   Subsystem 4 - Part No: 8E0959802E
   Component: Tõrsteuer.HR BRM 0606  

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 8J0-035-1xx-56.clb
   Part No SW: 8E0 035 195 AF    HW: 8E0 035 195 AF
   Component: R Symphony2+    H04 0270  
   Revision: 00H04000    Serial number: AUZ1Z4H7757051
   Coding: 0650012
   Shop #: WSC 06335 000 00000
   VCID: 6B80CF11BFAB0C6F0F5-5160

2 Faults Found:
01044 - Control Module Incorrectly Coded 
            000 - -
00856 - Radio Antenna 
            011 - Open Circuit - Intermittent

-------------------------------------------------------------------------------
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: 00000005070344
   Coding: 0001677
   Shop #: WSC 06335 000 00000
   VCID: 45D459A9F9BF1A1FB91-50D0

No fault code found.

End----------(Elapsed Time: 05:37, VBatt start/end: 12.2V/12.2V)-----------

Code:
Mode 01 - PID 01 : Readiness  --  Address 7E8

Number of DTCs stored: 0  --  MIL Status: MIL OFF
Misfire monitoring:  Passed
Fuel System:  Passed
Comprehensive Components:  Passed
Catalyst monitoring:  Passed
Heated catalyst monitoring: Not installed.
Evaporative system monitoring:  Passed
Secondary air system monitoring: Not installed.
A/C system refrigerant monitoring: Not installed.
Oxygen sensor monitoring:  Passed
Oxygen sensor heater monitoring:  Passed
Exhaust Gas Recirculation: Not installed.


Mode 03: Emission related fault codes

Address 7E8: No fault code found.

Mode 07: Pending emission related fault codes

Address 7E8: 1 Fault Found:
P0304 - Cylinder 4: Misfire Detected

Mode 9 : Calibration Identification

Type 02 - VIN : WAUDF78E68A163103 (Address E8)
Type 04 - Calibration ID : 8E1910115G Q0010 (Address E8)
Type 06 - Calibration Verification Number : 3164C184 (Address E8)
Type 08 - In-use performance tracking :
    OBD Monitoring Conditions Encountered count : 2012
    Ignition cycle count : 6801
    Conditions completion count / Specified conditions encountered count
         Catalyst monitor bank 1 : 1630 / 2011
         Catalyst monitor bank 2 : 0 / 0
         O2 Sensor monitor bank 1 : 1462 / 2012
         O2 Sensor monitor bank 2 : 0 / 0
         EGR-VVT monitor : 5817 / 2012
         AIR monitor : 0 / 0
         EVAP monitor : 65 / 204
Type 0A - Controller Name : ECM-Engine Control (Address E8)
 
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   #9  

Jack@European_Parts

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