A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

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Old May 3, 2003 | 07:06 AM
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Default Codes

Q1: Is there a database of codes (ECU) that one can reference easily for the A6 2.7T (2000)?

Q2: The following two codes have been pulled from the ECU; P1423 & P1411. Does anyone know what they reference?
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Old May 3, 2003 | 07:15 AM
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Default Bentley site has complete list of DTC's

P1423
17831
Sec. Air Inj.Sys.,Bank1

Flow too low 2)


P1411
17819
Sec. Air Inj.Sys.,Bank2

Flow too low 2)


Looks like you have a problem with your secondary air system. Manual says to check vacuum lines, secondary air pump and piping to combi valve.
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Old May 3, 2003 | 10:25 AM
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Default Re: Bentley site has complete list of DTC's

I continue to 'burn-up' secondary air-pump(s), and/or relay(s) and/or fuse(s). The dealer continues to replace these items, but has not resolved the 'core' problem.

Q1: How important is the secondary air-pump/system to overall vehicle function and/or performance?

Q2: Any ideas for a resolution? I sense the dealer is using this as a means to get my vehicle back to them either for additional work or to check to see if the car has been tuned.

Q3: Is the manual you mention available to me? through Bentley? I'd like to be able to identify and trace the secondary air-pump, combi valve and lines.

Q4: Where can the Bentley site w/ codes be found, ie. web address?
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Old May 3, 2003 | 11:50 AM
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Default Re: Bentley site has complete list of DTC's

I am not an expert on secondary air pump's purpose or operation, so I think you'll be better off asking an expert.

The manual I refer to is the Bentley manual for the Audi A6, available on CD Rom from Ross-Tech among other places.

At a minimum, you should get this manual and a VAG-COM tool from Ross-Tech if you are serious about tuning or understanding what is going on with your car.

There are complete diagnostic procedures for most issues in the manual, and the VAG-COM tool allows you to check your car just like the dealer does.

Here is the link to the DTC table

Good luck!<ul><li><a href="http://www.bentleypublishers.com/tech/audi/audi.dtc.table.htm">DTC Table on Bentley site</a></li></ul>
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