P244A

Particulate Filter Differential Pressure Too Low Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Problems with diesel particulate filter regeneration
Unusual noises from the exhaust system

Causes

Leak in the exhaust system
Malfunction of differential pressure sensors
Diesel particulate filter clogged or damaged
Pressure piping problems
Malfunction of the recirculation system valves

How to Fix

Check the exhaust system for leaks
Check the functionality of the pressure sensors
Inspect the particulate filter for damage
Check pipelines and connections for leaks
If necessary, replace the particulate filter

Related codes

P244B P2452 P2453