TSB 19-2257

Some 2018-2019 F-150 vehicles equipped with a 2.7L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0471 stored in the powertrain control module (PCM). This may be due to the exhaust pressure sensor. To correct the condition, follow the Service Procedure to replace the exhaust pressure sensor.