MasterTuning Fault code dictionary (DTC)

P244A — Diesel Particulate Filter Pressure Too Low

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningThe engine control unit has detected that the exhaust pressure before the diesel particulate filter is lower than expected. This usually means the sensor is not seeing the normal restriction, or there is an issue with the exhaust flow and pressure sensing system.
FamilyPowertrain (P)

Typical symptoms

Check engine light on the dashboard
Possible reduced engine performance or limp mode

Common causes

Faulty exhaust pressure sensor or blocked pressure pipes
Leak in the exhaust system before the particulate filter
Damage or modification to the diesel particulate filter

What to do

Have a mechanic check the pressure sensor pipes for cracks, blockages, or disconnections as soon as possible. Avoid heavy driving until the system is inspected to prevent potential engine management issues.

Frequently asked questions

What does code P244A mean?

Diesel Particulate Filter Pressure Too Low. The engine control unit has detected that the exhaust pressure before the diesel particulate filter is lower than expected. This usually means the sensor is not seeing the normal restriction, or there is an issue with the exhaust flow and pressure sensing system.

Can I keep driving with code P244A active?

With caution: limp mode possible, have it checked soon

Common causes — P244A

Faulty exhaust pressure sensor or blocked pressure pipes Leak in the exhaust system before the particulate filter Damage or modification to the diesel particulate filter

How do you fix code P244A?

Have a mechanic check the pressure sensor pipes for cracks, blockages, or disconnections as soon as possible. Avoid heavy driving until the system is inspected to prevent potential engine management issues.

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