The P244F: Exhaust Temperature Too High For Particulate Filter Regeneration Bank 2 code indicates that the exhaust temperature for Bank 2 is higher than the allowable range for safe particulate filter regeneration. This situation can occur due to a faulty temperature sensor, issues in the exhaust system, or problems with the regeneration process, all of which can prevent the diesel particulate filter (DPF) from functioning properly.
P244F – Quick Overview
Code | Information |
---|---|
Meaning | P244F: Exhaust Temperature Too High For Particulate Filter Regeneration Bank 2 |
Is it serious? | Moderate – excessively high temperatures can damage the diesel particulate filter and other components in the exhaust system, leading to costly repairs if not addressed promptly. |
Possible causes | – Exhaust temperature too high for Bank 2 – Faulty temperature sensor – Issues with the exhaust system or regeneration process |
How to diagnose? | – Inspect and test the exhaust temperature sensor for Bank 2 – Check the exhaust system for excessive temperatures – Replace faulty sensor or components as needed |
P244F Meaning
The P244F: Exhaust Temperature Too High For Particulate Filter Regeneration Bank 2 code indicates that the exhaust temperature is above the acceptable limit required for diesel particulate filter (DPF) regeneration in Bank 2. During regeneration, the DPF burns off the accumulated soot, but if the temperature is too high, it could damage the DPF and other exhaust components. Causes could include a faulty temperature sensor giving incorrect readings, issues with the exhaust system causing excess heat, or problems with the regeneration control process.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to see if there are any other related fault codes present. These codes might help in diagnosing other exhaust or sensor issues affecting Bank 2. | OBD-II Scanner |
Inspect the Exhaust Temperature Sensor | Visually inspect the exhaust temperature sensor for Bank 2 for any visible signs of damage or wear that could lead to incorrect temperature readings. | Flashlight, Safety Gloves |
Test the Temperature Sensor | Use a diagnostic tool to test the exhaust temperature sensor. Compare its readings with manufacturer specifications to determine if the sensor is functioning correctly. | Multimeter, Diagnostic Tool |
Inspect the Exhaust System | Examine the exhaust system components, including the catalytic converter, exhaust manifold, and any related parts, for signs of excessive temperature or potential blockages. | Flashlight, Temperature Probe |
Check the Regeneration Process | Use a diagnostic tool to monitor the DPF regeneration process. Ensure that the control system is properly regulating temperature and not causing it to exceed safe levels. | Diagnostic Tool |
Repair or Replace Components | If the temperature sensor, exhaust components, or regeneration system parts are found to be faulty, replace them as needed to prevent further issues with temperature control. | Replacement Sensor, Heater, Wrench Set |
Clear the Code and Test Drive | Clear the P244F code using an OBD-II scanner and take the vehicle for a test drive while monitoring exhaust temperatures. Ensure that they remain within safe levels for DPF regeneration. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | Re-scan the vehicle to verify that the P244F code has not returned. If the code persists, further investigation is needed to determine the underlying issue. | OBD-II Scanner |

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Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)