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What does a P0420 code mean in a 2002 ford ranger?

Updated: 10/22/2022

Wiki User

∙ 14y ago

Best Answer

it has to deal with your cat....theres two o2 sensors on a Ford either could be a bad sensor...easiest was is to change em and remove neg. battery cable for a couple seconds and itll erase the code

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∙ 14y ago

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