P244D on Ford: How to Diagnose & Fix
Exhaust Temperature Too High for Particulate Filter Regeneration (Bank 1)
1 Ford model · 1 documented issue · $400-$2,500 repair
P244D on Ford by model: symptoms, diagnosis and fix
Diesel Fiestas frequently suffer diesel particulate filter (DPF) blockage and incomplete/failed regeneration, especially on cars used mainly for short, low-speed journeys that never reach regeneration temperature. Soot accumulates, the DPF warning light appears, and the car may enter limp mode or dump excess fuel into the oil during failed active regens (raising oil level and diluting it). Underlying triggers are often other faults — a leaking/faulty injector, stuck EGR, blocked intake, or failed DPF differential-pressure/EGT sensor — so the blocked DPF is frequently a symptom rather than the root cause.
Common Symptoms
- DPF / exhaust warning light
- Limp mode / reduced power
- Frequent regeneration attempts
- Rising engine oil level (fuel dilution)
- Excess smoke or smell
- Poor fuel economy after failed regen
How to Fix
When the DPF light shows, drive at a steady 40+ mph for ~20 minutes to allow passive/active regeneration before it fully blocks. If blocked, run a forced regeneration and diagnose the root cause: test the DPF pressure and EGT sensors, check EGR operation, and inspect for a leaking injector causing oil dilution. Clean or replace the DPF if soot loading is beyond limits, and change oil if fuel-diluted.
Sources for this issue (1)
P244D code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P244D mean on a Ford?
P244D stands for "Exhaust Temperature Too High for Particulate Filter Regeneration (Bank 1)." Generic diesel code indicating exhaust gas temperature at Bank 1 rose above the safe threshold during particulate filter regeneration. Excessive regen temperature can damage the DPF, so the PCM flags it and may abort regeneration. On Ford it is documented across 1 model: Fiesta.
What are the most common causes of P244D?
The most common causes of P244D are: Over-fueling / faulty post-injection (dosing) control, Excessive soot load causing runaway burn, Faulty EGT sensor reading, Stuck/leaking injector, DPF pressure sensor fault. The specific cause varies by vehicle.
How much does it cost to fix P244D on a Ford?
Published repair estimates on Ford range from $400 to $2,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.