P244D

Exhaust Temperature Too High For Particulate Filter Regeneration Bank 1

Q: Is it safe to drive with P244D?

Short trips are usually okay, but if regenerations keep aborting the DPF can clog, and truly high exhaust temps can cause damage. Have it diagnosed soon.

Q: Can I just clear P244D?

It returns at the next regeneration attempt unless the high-temperature reading or its cause is fixed.

Diesel particulate filter Generic OBD-II Medium

What it means

P244D is a diesel code meaning the exhaust gas temperature during or entering diesel particulate filter (DPF) regeneration on bank 1 is too high for regeneration to run safely. Excessive regen temperatures can damage the DPF and nearby exhaust components. It's often a faulty exhaust gas temperature sensor reading high, but it can also reflect a genuine over-temperature condition.

Medium

Can I keep driving? Usually driveable, but repeated blocked regenerations can clog the DPF and dangerously high exhaust temps can cause damage; have it checked soon.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
DPF/regeneration warning or incomplete regen cycles
Possible reduced power or limp mode if regen keeps failing
High exhaust-temperature warnings on some vehicles

Common causes

Most likely first

Faulty exhaust gas temperature (EGT) sensor reading highLikely
EGT sensor wiring or connector fault (short or open)Common
Genuinely high exhaust temperature (over-fueling, injector fault, or overloaded/restricted DPF)Common
Incorrect regeneration strategy triggered by a related faultLess often
Faulty PCM/ECM (rare)Less often

How to diagnose & fix

Work through it in order

Scan and compare the EGT sensor readings for a stuck-high or implausible value.
Inspect the EGT sensor wiring and connector for shorts or opens.
Check for over-fueling or injector faults that raise exhaust temperature.
Replace the faulty EGT sensor if it reads high when actual temps are normal.
Once fixed, allow a complete regeneration and confirm the code stays off.

FAQ

Quick answers

Is it safe to drive with P244D?+

Short trips are usually okay, but if regenerations keep aborting the DPF can clog, and truly high exhaust temps can cause damage. Have it diagnosed soon.

Can I just clear P244D?+

It returns at the next regeneration attempt unless the high-temperature reading or its cause is fixed.

Read & clear P244D yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

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✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX