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Re: 2001 Audi A6 quattro 2.7l w/ O2 heater codes
Posted to Technical Discussion Forum on 8/3/2007 3 Replies

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My limited experience with this engine and O2 heater codes is that they are extremely particular about the impedence of the heater circuit. The heaters are likely working "good enough" but the ECM wi... Login to read more.

3 Replies Received (View Replies)