What Does P244F Mean?
The exhaust temperature on bank 2 has exceeded safe limits for DPF regeneration. This condition can damage the particulate filter and surrounding exhaust components if not corrected.
Common Causes
35%
Defective exhaust temperature sensor providing false high readings
30%
Excessive fuel delivery during post-injection causing overheating
20%
Heavily loaded or clogged DPF causing excessive regeneration temperatures
15%
ECM calibration error or corrupted software
Diagnostic Steps
1
Step 1: Compare live exhaust temperature readings from bank 2 sensor against bank 1 during regeneration
2
Step 2: Test exhaust temperature sensor accuracy using infrared thermometer or thermocouple comparison
3
Step 3: Check fuel injector operation and post-injection fuel quantity parameters
4
Step 4: Measure DPF differential pressure to assess soot loading level
5
Step 5: Verify ECM software version and check for available updates or recalls
Estimated Repair Cost
$200 - $3,000
Parts + labor, varies by vehicle and location
The exhaust temperature on bank 2 has exceeded safe limits for DPF regeneration. This condition can damage the particulate filter and surrounding exhaust components if not corrected.
The most common cause of P244F (Exhaust Temperature Too High For Particulate Filter Regeneration Bank 2) is: Defective exhaust temperature sensor providing false high readings
Typical repair costs for P244F range from $200 to $3,000, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause vehicle to enter reduced power mode. Excessive heat can damage DPF, turbocharger, and other exhaust components creating potential fire hazard.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P244F to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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