P0420 And Bad Gas Mileage

23 Nov 2023

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Entry #2 by mrcontrapos for why is my gas mileage so bad?

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Bad mileage and P0420 and P0430 on, OBD2 strangeness | Honda Ridgeline

P0067 code: air assisted injector control circuit high

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Bad Gas Mileage: 4 Things That Could Be the Reason

Weird, inconsistant p0420 situation. fluke? bad gas? elevation

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Cheap Catalytic Convertor getting P0420 same gas mileage | PriusChat

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