P244E — Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 2

powertrain (engine/transmission)

Is it safe to drive?

Drive with caution Drive only enough to reach a service. A saturated DPF pushes the car into limp mode, and continued driving with failed regenerations dilutes engine oil with fuel — that damages the engine itself.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm P244E is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the diesel particulate filter (DPF) for damage, corrosion, chafing or poor contact.
  4. Subsystem check Read DPF soot load and differential pressure in live data before and after a forced regeneration.
  5. Subsystem check Verify exhaust temperature and pressure sensor readings are plausible at idle and under load.
  6. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P244E does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P244E (parts and labor, USD, independent shop rates): DPF replacement: $1,500–$4,000; Forced regeneration / cleaning: $150–$400; Replace a pressure or temperature sensor: $150–$450. Overall, fixing P244E usually costs between $150 and $4,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

What is the most common cause of P244E?

The most common causes are: faulty differential pressure or exhaust temperature sensor, failed regeneration due to sensor or wiring faults, engine faults producing excess soot (EGR, injectors).

How much does it cost to fix P244E?

DPF replacement — $1,500–$4,000; Forced regeneration / cleaning — $150–$400; Replace a pressure or temperature sensor — $150–$450. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

Is it safe to drive with P244E?

Drive only enough to reach a service. A saturated DPF pushes the car into limp mode, and continued driving with failed regenerations dilutes engine oil with fuel — that damages the engine itself.

How do I diagnose P244E myself?

Start with a scan: confirm P244E, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the diesel particulate filter (DPF), and verify the suspect component against live data before buying parts.

What are the symptoms of P244E?

Drivers most often notice: rising oil level from fuel dilution, Check Engine or DPF warning light on, increased fuel consumption, loss of power and limp mode.

What does P244E mean?

Behind P244E is a specific failure in the diesel particulate filter (DPF): exhaust temperature too low for particulate filter regeneration bank 2. The onboard computer stores it in the powertrain (engine/transmission) group after verifying the fault over repeated checks.

“Bank 2” means the side of the engine opposite to cylinder 1. Verify which side that is on your specific engine before testing or replacing parts.

To set P244E, the control module compares live readings of the diesel particulate filter (DPF) against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.

What causes P244E?

  • engine faults producing excess soot (EGR, injectors)
  • excessive ash loading (end of DPF life)
  • failed regeneration due to sensor or wiring faults
  • soot-overloaded DPF from short-trip driving
  • faulty differential pressure or exhaust temperature sensor

Common symptoms of P244E

  • rising oil level from fuel dilution
  • Check Engine or DPF warning light on
  • increased fuel consumption
  • loss of power and limp mode
  • frequent regeneration attempts

How to diagnose P244E

  1. Connect an OBD2 scanner, confirm P244E is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the diesel particulate filter (DPF) for damage, corrosion, chafing or poor contact.
  4. Read DPF soot load and differential pressure in live data before and after a forced regeneration.
  5. Verify exhaust temperature and pressure sensor readings are plausible at idle and under load.
  6. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P244E does not return.

How to fix P244E

Start with the cheapest and most common causes before replacing expensive parts:

  • DPF replacement — $1,500–$4,000
  • Forced regeneration / cleaning — $150–$400
  • Replace a pressure or temperature sensor — $150–$450

How much does it cost to fix P244E?

Repair cost depends on which component actually failed. Typical scenarios for P244E (parts and labor, USD, independent shop rates):

  • DPF replacement: $1,500–$4,000
  • Forced regeneration / cleaning: $150–$400
  • Replace a pressure or temperature sensor: $150–$450

Overall, fixing P244E usually costs between $150 and $4,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P244E?

Drive only enough to reach a service. A saturated DPF pushes the car into limp mode, and continued driving with failed regenerations dilutes engine oil with fuel — that damages the engine itself.

Related OBD2 codes