A4 (B8 Platform) Discussion Discussion forum for the B8 Audi A4 produced from 2008.5

EPC LIGHT + CODES

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Old May 12, 2018 | 01:50 PM
  #1  
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Default EPC LIGHT + CODES

Scanned my buddies A4, B8 Platform. The car idles super tough from time to time.
The EPC light is on - on the dashboard. Surprisingly it usually idles okay when the light is on - but rough and like it is going to stall when its off.
That said here are some codes from VCDS when I did Auto Scan.
Anybody have an idea what part is likely causing all these codes?

Thanks!
10 Faults Found
4698 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.11.13
Time: 13:58:234699 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.11.13
Time: 13:58:244629 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 14096 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:20:554054 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:564063 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:564057 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:564051 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:104261 - ROD - Unknown Error Code
- Intermittent - MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:01:468169 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1Readiness: 1110 0101
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Old May 12, 2018 | 02:28 PM
  #2  
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Just to reply to my own thread as I don't see an edit function - I will highlight the codes more clearly here:
4698 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.11.13
Time: 13:58:234699 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.11.13
Time: 13:58:244629 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 14096 - ROD - Unknown Error Code Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:20:554054 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:564063 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:564057 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:564051 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2017.12.17
Time: 13:16:104261 - ROD - Unknown Error Code
- Intermittent - MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:01:468169 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1Readiness: 1110 0101-------------------------------------------------------------------------------
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Old May 12, 2018 | 02:32 PM
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Okay here it goes a third time the formatting is not working:
4698 - ROD - Unknown Error Code 4699 - ROD - Unknown Error Code 4629 - ROD - Unknown Error Code 4096 - ROD - Unknown Error Code 4054 - ROD - Unknown Error Code
4051 - ROD - Unknown Error Code
4261 - ROD - Unknown Error Code8169 - ROD - Unknown Error Code
-
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Old May 12, 2018 | 04:09 PM
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You should probably paste the text into a basic editor like Notepad or Notepad++ where all the hidden control stuff gets filtered out, then format it in plain text the way you want it to look and copy/paste that into the posting.
There is an edit button, should be in the bottom right of the post when looking at the thread if you were the post author.

Since it's VCDS, when the auto scan finishes, save to log file, then copy/paste from the log file. There seems to be a lot of missing information in that data for it to be coming from VCDS.
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Old May 12, 2018 | 06:11 PM
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No ASAM data for: "EV_ECM20TFS0118K2907115AL" (AU48)
7 Faults Found
4113 - ROD - Unknown Error Code

Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:20:44

4096 - ROD - Unknown Error Code

Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:16:28

4054 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:17:26

4060 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:17:26

4063 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:17:26

4057 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:17:26

4051 - ROD - Unknown Error Code
- MIL ON
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 171946 km
Date: 2008.05.27
Time: 00:17:26
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Old May 13, 2018 | 10:42 AM
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It looks like VCDS doesn't recognize your ECM: No ASAM data for: "EV_ECM20TFS0118K2907115AL" (AU48).
4051 through 4063 are misfire event on each cylinder, 4113 is about the camshaft position sensor, and 4096 is about the CMP Sensor (G40) / Engine Speed Sensor (G28). Found all this by simply using Google.
But you're missing the P code for each DTC, so the specific of the error is missing because your VCDS doesn't understand the ECM you've hooked it up to, somehow.
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Old May 14, 2018 | 04:04 PM
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Originally Posted by SMac770
It looks like VCDS doesn't recognize your ECM: No ASAM data for: "EV_ECM20TFS0118K2907115AL" (AU48).
4051 through 4063 are misfire event on each cylinder, 4113 is about the camshaft position sensor, and 4096 is about the CMP Sensor (G40) / Engine Speed Sensor (G28). Found all this by simply using Google.
But you're missing the P code for each DTC, so the specific of the error is missing because your VCDS doesn't understand the ECM you've hooked it up to, somehow.
so without the P codes this is useless?
or are the general codes that were googled indicative of a specific problem?

could it be something easy like the mass airflow sensor,or coil pack?

The car basically idles super rough sometimes below even 1000 rpm and wants to stall.

usually when the epc light comes back on it idle normals again.

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Old May 14, 2018 | 07:54 PM
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I've never had 4113 or 4096. So never needed to look into it. I would say those should be your focus, as the misfires are probably just fallout from the actual issue. It would be more informative with the complete DTC data, but you can start searching from those two codes and see where it takes you.
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