I have 2013 f350 crew lariat 4x4 6.7 5000 miles . Cel coming on about 300 miles apart , 4th time now same code p054f ,dealer ship has no answers. Thayer say ford is investigating it ?? I don't about that but it is a real pain bringing it in. Any one having this problem.

 

Tell them to go to pinpoint test "M" in the PCED.