What Does Code P0420 Bank 1 Mean

Posted on 20 Sep 2023

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P0430 – Catalytic converter system, bank 2 -efficiency below threshold

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Code P0420, who can recommend first o2 sensor to swap first? | Tacoma World

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P0420 – Catalytic converter system, bank 1 -efficiency below threshold

P0430 – catalytic converter system, bank 2 -efficiency below threshold

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P0420 sensor bank code catalytic converter threshold efficiency below system oxygen where located location control troublecodes common circuit current open .