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2002 Audi A6 Quattro Error Code Help

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Old 08-04-2010, 06:37 PM
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Default 2002 Audi A6 Quattro Error Code Help

I have a 2002 Audi A6 sedan with 3.0 V6 engine. A friend used their VAG-COM unit to further diagnose a P0421 fault code (Warm up catalyst below threshold - Bank 1)that keeps coming up. The VAG-COM unit displayed an Audi code of 16805. Can anyone tell me what the Audi code is? I have changed spark plugs and the Bank 1 downstream O2 sensor. I assume the Audi code is more explicit but I do not know what the 16805 code is. Please help!!!
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Old 08-04-2010, 08:14 PM
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Old 08-05-2010, 12:45 PM
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Uwe:

Thanks alot!!! But can you tell me three Audi beginner things?

1. What is a warm up catalyst?

2. Do I need VAG-COM to set readiness and HOW do I do it?

3. Name of a good repair manual? Does your company sell them?
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Old 08-06-2010, 11:29 AM
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Hi Les,

I replied to your email. Have a nice weekend.

-Dana
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