6.7L – Various Fuel System DTCs – Unable To Command PCV/VCV With FDRS – 2020-2021 Ford F-Super Duty
NHTSA ID Number: 10201645 Manufacturer Communication Number: TSB 21-2309 Summary Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with various fuel system related diagnostic trouble codes (DTC) stored in the powertrain control module (PCM). While performing pinpoint test (PPT) M in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual, … Read more