Illuminated MIL With DTC P0420 And/Or P0430 – 2020-2021 Ford Expedition & Lincoln Navigator & 2018-2020 F-150
NHTSA ID Number: 10230765 Manufacturer Communication Number: TSB 22-2260 Summary Some 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost and 2020-2021 Expedition/Navigator vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to high sulfur content in the fuel. … Read more