A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

CEL Codes

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Old 12-26-2007, 06:48 PM
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Default CEL Codes

This is on my 02 3.0
The dealer just installed 2 new cats. The cel came on one day later.

Control Module Part Number: 8E0 909 559 D
Component and/or Version: 3.0L V6/5V G 0004
Software Coding: 0016751
Work Shop Code: WSC 63351
2 Faults Found:
17831 - Secondary Air Injection System: Bank 1: Insufficient Flow
P1423 - 002 - Lower Limit Exceeded
17819 - Secondary Air Injection System: Bank 2: Insufficient Flow
P1411 - 002 - Lower Limit Exceeded
Old 12-27-2007, 12:24 AM
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Default If you mean to ask whats up with these codes, ...

they mean the Secondary air injection system is not working. Either the hoses are loose, or the vacuum hoses to the SA Combination valve/s is disconnected, or the electrical connector to the SAI solenoid valve is disconnected, etc.
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