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Re: Catalytic Converters, A/F and Oxygen Sensors
Posted to Technical Theory Forum on 3/24/2004 2 Replies

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We did a repair on a late model Toyota for a DTC P0420. After repairs mode 6 was 0.07 with a limit of 0.6. The problem was not caused by a bad cat.

We installed an aftermarket cat for research on an... Login to read more.

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