DTC 16804
04-15-2006, 02:57 AM
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DTC 16804
Hi, I pulled a DTC 16804 (catalytic insufficiency) on my 2002 A4. Does anyone know how to tell if the problem is with the catalytic or the rear O2 sensor? Also, which is the best online parts seller to deal with?
Thanks in advance for the information!
Thanks in advance for the information!
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