2009 Audi A4 Cabriolet 2.0T misfire with codes

   #1  

keithb3

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I'm fairly new to VCDS and I've been trying to figure out what is going on with my car. It has a pretty rough idle, I would say a little power loss but once you get above about 1200 rpm it seems to smooth out and run smooth. There are several codes in the log file, I'm not sure if they are in any type of order or which code I should be focusing on first. I did start with the P1297 mainly because it was first in the list. I have already replaced the PCV, Diverter valve and the Boost Pressure Control Valve (N75) and cleaned the throttle body but it has made no difference. I figured I would try here before I take it to the shop. Over the past year I have had to replace the plugs, coils, high pressure fuel pump with cam follower and the fuel filter. Any help would be appreciated.

Here is the log file:

Code:
Monday,11,October,2021,20:22:26:20034
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 21.9.0.2 (x64)  HEX-V2 CB: 0.4555.4
Data version: 20210903 DS330.0
www.Ross-Tech.com


VIN: WAUAF48H99K008553   License Plate:
Mileage: 166440km-103421mi   Repair Order:



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


Chassis Type: 8H (8H - Audi Cabrio B6/B7 (2003 > 2009))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 26 36 37 45 46 55 56 57
          63 65 67 73 75 76 77

VIN: WAUAF48H99K008553   Mileage: 166440km-103421miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels:. 06F-907-115-AXX.clb
   Part No SW: 8E1 910 115 H    HW: 8E0 907 115 D
   Component: 2.0l R4/4V TFSI     0010
   Revision: 5EH15---    Serial number:             
   Coding: 011C010A02070120
   Shop #: WSC 00672 785 00200
   VCID: 270BFD9813E9F013C6B-8072
   VINID: 9D19515842182496C00081450C3BFB81D3

10 Faults Found:
004759 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
               P1297 - 001 -
             Freeze Frame:
                    Fault Status: 01100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 166378 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1109 /min
                    Load: 33.3 %
                    Speed: 13.0 km/h
                    Temperature: 42.0°C
                    Temperature: 27.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.843 V

004243 - Bank 1; Fuel Measuring System 2
               P1093 - 008 - Malfunction - Intermittent
             Freeze Frame:
                    Fault Status: 00101000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 166378 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1269 /min
                    Load: 13.3 %
                    Speed: 37.0 km/h
                    Temperature: 52.0°C
                    Temperature: 27.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.843 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: 166382 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1538 /min
                    Load: 33.7 %
                    Speed: 81.0 km/h
                    Temperature: 89.0°C
                    Temperature: 42.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.589 V

000768 - Random/Multiple Cylinder Misfire Detected
               P0300 - 008 -  - MIL ON
             Freeze Frame:
                    Fault Status: 11101000
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 255
                    Mileage: 166386 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1027 /min
                    Load: 29.0 %
                    Speed: 0.0 km/h
                    Temperature: 91.0°C
                    Temperature: 39.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.462 V

000769 - Cylinder 1
               P0301 - 008 - Misfire Detected - MIL ON
             Freeze Frame:
                    Fault Status: 11101000
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 255
                    Mileage: 166386 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1641 /min
                    Load: 51.0 %
                    Speed: 26.0 km/h
                    Temperature: 90.0°C
                    Temperature: 38.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.716 V

000771 - Cylinder 3
               P0303 - 008 - Misfire Detected - MIL ON
             Freeze Frame:
                    Fault Status: 11101000
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 255
                    Mileage: 166386 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1641 /min
                    Load: 51.0 %
                    Speed: 26.0 km/h
                    Temperature: 90.0°C
                    Temperature: 38.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.716 V

000772 - Cylinder 4
               P0304 - 008 - Misfire Detected - MIL ON
             Freeze Frame:
                    Fault Status: 11101000
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 255
                    Mileage: 166386 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1641 /min
                    Load: 51.0 %
                    Speed: 26.0 km/h
                    Temperature: 90.0°C
                    Temperature: 38.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.716 V

000770 - Cylinder 2
               P0302 - 008 - Misfire Detected - MIL ON
             Freeze Frame:
                    Fault Status: 11101000
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 255
                    Mileage: 166386 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1641 /min
                    Load: 51.0 %
                    Speed: 26.0 km/h
                    Temperature: 90.0°C
                    Temperature: 38.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.716 V

008825 - Leak in Air Intake System
               P2279 - 002 -  - MIL ON
             Freeze Frame:
                    Fault Status: 11100010
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 166387 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 817 /min
                    Load: 18.4 %
                    Speed: 0.0 km/h
                    Temperature: 90.0°C
                    Temperature: 51.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.335 V

012555 - Low Pressure Fuel regulation
               P310B - 001 - Fuel Pressure Outside Specification - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 166395 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1176 /min
                    Load: 14.5 %
                    Speed: 37.0 km/h
                    Temperature: 45.0°C
                    Temperature: 27.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.970 V

Readiness: 0000 0101

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01J-927-156.lbl
   Part No SW: 8E4 910 156 E    HW: 01J 927 156 HT
   Component: V30 01J 2.0TFSI USA 0010
   Revision: 00000011    Serial number: 00000001233139
   Coding: 0000001
   Shop #: WSC 44550 001 00001
   VCID: 2C0102B40A0FD34B2B9-8078

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-910-517.clb
   Part No SW: 8E0 910 517 H    HW: 8E0 614 517 BF
   Component: ESP8 FRONT      H06 0140
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0004525
   Shop #: WSC 00672 785 00200
   VCID: 2C0102B40A0FD34B2B9-8078

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 BL
   Component:   A4 Klimaautomat   3233
   Coding: 00100
   Shop #: WSC 00672
   VCID: 6C81C2B4CF9F134B6B9-513C

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: 21023
   Shop #: WSC 00000
   VCID: 3D273FF0E4654AC38C7-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8H0-959-655-94.lbl
   Part No SW: 8H0 959 655 H    HW: 8H0 959 655 H
   Component:    Airbag 9.42  H01 1830
   Revision: 92H01183    Serial number: 003D00007GTP
   Coding: 0132105
   Shop #: WSC 00672 785 00200
   VCID: 3FDB45F8EB7958D39EB-806A

   Subsystem 1 - Part No: 8H0 910 339 B
   Component: BF-Gewichtsens. H02 0020

   Subsystem 2 - Serial number: 03L5G       

   Subsystem 3 - Serial number: 0001.01.0000H0200000000000ÿ†63

   Subsystem 4 - Serial number: 000000ÿ†6332BRB4045C6AC0Uÿ†63

   Subsystem 5 - Serial number: C6AC0Uÿ†6342BRB4045C4F9A+ÿ†63

   Subsystem 6 - Serial number: C4F9A+ÿ†63729RB4044D00F7Qÿ†63

   Subsystem 7 - Serial number: D00F7Qÿ†63829RB4044CF73F1ÿ

   Subsystem 8 - Serial number: CF73F1ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 Q
   Component: Lenksáulenmodul     0801
   Coding: 03141
   Shop #: WSC 00672
   VCID: 41DF4300989D2E23E8F-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8H0 920 982 B    HW: 8H0 920 982 B
   Component: KOMBI+WFS 4     H10 0200
   Revision: 0200        Serial number: 00000000000000
   Coding: 0006261
   Shop #: WSC 05136 512 00000
   VCID: 303916C42637B7AB171-50F4

1 Fault Found:
01300 - Control Module for Navigation with CD-Rom (J401)
            004 - No Signal/Communication

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8H0 920 982 B    HW: 8H0 920 982 B
   Component: KOMBI+WFS 4     H10 0200
   Revision: 0200        Serial number: 00000000000000
   Coding: 0006261
   Shop #: WSC 05136 512 00000
   VCID: 303916C42637B7AB171-50F4

1 Fault Found:
01300 - Control Module for Navigation with CD-Rom (J401)
            004 - No Signal/Communication

-------------------------------------------------------------------------------
Address 26: Auto Roof        Labels: 8H0-959-255.clb
   Part No: 8H0 959 255 B
   Component:  VSG  B6 CABRIO     7195
   Shop #: WSC 00672 785 00200
   VCID: 353727D0D9559283447-50F4

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8H0 959 433 L
   Component: Komfortgerát T7B    5442
   Coding: 11820
   Shop #: WSC 00672
   VCID: 3D273FF0E4654AC38C7-4AA4

   Subsystem 1 - Part No: 8H1959801D
   Component: Tõrsteuer.FS BRM 0205

   Subsystem 2 - Part No: 8H1959802D
   Component: Tõrsteuer.BF BRM 0205

   Subsystem 3 - Part No: 8H0959801A
   Component: Tõrsteuer.HL BRM 0003

   Subsystem 4 - Part No: 8H0959802A
   Component: Tõrsteuer.HR BRM 0003

4 Faults Found:
00962 - Alarm via. Tilt Sensor
            35-00 - -
01369 - Alarm triggered by Hood Switch
            35-00 - -
01374 - Alarm triggered by Terminal 15
            35-00 - -
01371 - Alarm triggered by Door Contact Switch; Driver's Side
            35-00 - -

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 8P0-907-357.lbl
   Part No: 8P0 907 357 H
   Component: Dynamische LWR  H02 0010
   Revision: 00000001    Serial number:             
   Coding: 0000005
   Shop #: WSC 00672 785 00200
   VCID: 3FDB45F8EB7958D39EB-806A

No fault code found.

-------------------------------------------------------------------------------
Address 63: Entry Assist,D        Labels: None
   Part No: 8H0 959 760 A
   Component: EasyEntry F   H13   0010
   Coding: 00005
   Shop #: WSC 00065
   VCID: 353727D0DC659283447-4B3C

No fault code found.

-------------------------------------------------------------------------------
Address 65: Tire Pressure        Labels: 8E0-907-273.lbl
   Part No SW: 8E0 907 273 A    HW: 8E0 907 273 A
   Component: Reifendruck 3   H04 0130
   Coding: 0062121
   Shop #: WSC 00672 785 00200
   VCID: 2A0D04AC00DBCD7BD95-5160

No fault code found.

-------------------------------------------------------------------------------
Address 73: Entry Assist, P        Labels: None
   Part No: 8H0 959 760 A
   Component: EasyEntry BF  H13   0010
   Coding: 00005
   Shop #: WSC 00065
   VCID: 353727D0DC659283447-4B3C

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 8P0-862-335.lbl
   Part No SW: 8P0 862 335 T    HW: 8P0 862 335 T
   Component: FSE_256x BT     H34 0550
   Revision: 00000000    Serial number: 00000005012829
   Coding: 0011807
   Shop #: WSC 00672 785 00200
   VCID: 47CB5D18B3B9101326B-50D0

No fault code found.

End----------(Elapsed Time: 05:02, VBatt start/end: 12.4V/12.4V)-----------


Thanks,
Keith
 
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   #2  

Uwe

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Looks like it still has an intake air leak somewhere.

It may also have fuel delivery problems. Transfer pump?

-Uwe-
 
   #3  

Jef

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With at idle and up to temp, go into 01-08-106 and I think field 2 will show the lift pump duty cycle.... what is that value?
 
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   #4  

keithb3

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With at idle and up to temp, go into 01-08-106 and I think field 2 will show the lift pump duty cycle.... what is that value?
Jef,
Under 106 I see fuel rail pressure - which is 51.61 bar and for field 2 is Electric fuel pump, that is 71.8%.
Thanks for the help!
 
   #5  

keithb3

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I also cleared all the codes again just to see what what codes might come up first. Besides the misfire codes for each cylinder, I have the P1297 and P2279, so I would lean more towards the intake air leak somewhere but I could be wrong. There is also a definitely loss of power, almost like the turbo isn't kicking in or something, it is definitely noticeable.
 
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Jef

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field 2 is Electric fuel pump, that is 71.8%

Like potassium benzoate, that's bad. The lift pump should be running around 50% duty cycle at idle. Odds are the pump is "crapping out" and to counter this, the duty cycle is ramped up. This is a fairly common issue with this generation A4. I don't think this is your only issue, but it needs to be resolved. To that end, I would suggest you only purchase the lift pump from the dealer. DO NOT purchase some "OE" lift pump from anywhere else!!! I've seen way too many cases of bad lift pumps, cheap "OE" pumps tossed in that are worse! And then people want to argue about how the junk part came in an Audi box. No on cares about the cardboard box, you tossed that in the trash before you even called me.... and now your numbers are worse.... how can you not see the issue here..... </rant>

Anyway, get it from the dealer, but there are other issues. I'm a bit surprised you don't have P0087 or P310B codes. The misfires might be hiding those.
 
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   #7  

keithb3

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Like potassium benzoate, that's bad. The lift pump should be running around 50% duty cycle at idle. Odds are the pump is "crapping out" and to counter this, the duty cycle is ramped up. This is a fairly common issue with this generation A4. I don't think this is your only issue, but it needs to be resolved. To that end, I would suggest you only purchase the lift pump from the dealer. DO NOT purchase some "OE" lift pump from anywhere else!!! I've seen way too many cases of bad lift pumps, cheap "OE" pumps tossed in that are worse! And then people want to argue about how the junk part came in an Audi box. No on cares about the cardboard box, you tossed that in the trash before you even called me.... and now your numbers are worse.... how can you not see the issue here..... </rant>

Anyway, get it from the dealer, but there are other issues. I'm a bit surprised you don't have P0087 or P310B codes. The misfires might be hiding those.
Thank you
 
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