2012 Ford Focus P0420
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P0420 - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
1.0 ford focus mk3 oxygen sensors replacement & removal quick test Ford focus mk3 oxygen sensors replacement P0420 ford focus forum likes
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Ford focus p0420 sensor o2 oxygenP0420 code P0420 fiesta threshold catalystP0420 catalyst system efficiency below threshold bank 1.
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