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

Anonymous

∙ 16y ago

Updated: 10/22/2022

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

Wiki User

∙ 16y ago

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