DTC P249F - Excessive Time To Enter Closed Loop DPF Regeneration Control

WARNING: This page is about a different car, the 2020 Ford F-550 Super Duty, 2020 Ford F-450 Super Duty, 2020 Ford F-350 Super Duty, 2020 Ford F-250 Super Duty, and 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

DTC DESCRIPTION P249F - EXCESSIVE TIME TO ENTER CLOSED LOOP DPF REGENERATION CONTROL

Description:	The PCM monitors the diesel particulate filter to determine that closed loop control of a regeneration event occurs within a reasonable amount of time. This DTC sets when time in closed-loop operation is less than an expected threshold.
Possible Causes:	Damaged exhaust gas temperature bank 1, sensor 2 (EGT12) sensor Fuel injection concern Damaged diesel oxidation catalyst Biased diesel particulate filter pressure bank 1, sensor 1 Damaged diesel particulate filter pressure bank 1, sensor 1
Diagnostic Aids:
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST RC .