2000 Audi A6 2.7T Quattro 90k miles P0421

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07-17-2008, 01:28 PM

upops

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2000 Audi A6 2.7T Quattro 90k miles P0421

Im getting check engine light code P0421 and from what I been reading it is the catalytic converter. But there is 2 on this car. Does anyone know which one it would be for this code?

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07-17-2008, 06:16 PM

radhaz

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Re: 2000 Audi A6 2.7T Quattro 90k miles P0421

My eBahn says:

sae p0421 vag 16805
warm up catalyst efficiency below threshold bank 1

I think bank 1 is the driver side.

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07-17-2008, 06:34 PM

i-DAR

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Logically bank 1 should be passenger side since cylinders 1-3 are there as well.

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