P0420 Ford Fiesta

I keep getting code p0420 after i replaced both 02 sensors. even before Ford fiesta p0420: catalyst system efficiency → below threshold → bank P0420 catalyst threshold

P0420 FORD FIESTA TITANIUM - YouTube

2013 nissan pathfinder p0420 P0420 ford: causes, symptoms & fixes Ford fiesta p0420 code

P0420 ford fiesta

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Code p0420 already popping up on my 2016 ford fiesta se

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