P24F4
NOx Sensor Delayed Response - High to Low Bank 1 Sensor 1
P24F4 is an OBD-II diagnostic trouble code meaning: NOx Sensor Delayed Response - High to Low Bank 1 Sensor 1. Common causes: nox sensor contaminated by soot or deposits, mechanical damage to the sensor. Estimated repair cost: $167–444.
Symptoms
- Increased urea consumption (AdBlue)
- Check Engine Light Illuminates
- Reduced engine power
- Errors related to the SCR system
- Dips during acceleration
Causes
- NOx sensor contaminated by soot or deposits
- Mechanical damage to the sensor
- Sensor wiring problems
- Low quality urea (AdBlue)
- SCR control unit malfunction
How to Fix
- Check connections and sensor wiring harness
- Clean the NOx sensor with a special compound
- Check the quality and level of AdBlue
- Replace NOx sensor if necessary
- Flash the SCR control unit (if updates are available)
Related codes
Error P24F4 by Vehicle Brand
FAQ
What does the P24F4 code mean?
P24F4 is an OBD-II diagnostic trouble code that indicates: NOx Sensor Delayed Response - High to Low Bank 1 Sensor 1
What causes a P24F4 error code?
The most common causes of P24F4 include: NOx sensor contaminated by soot or deposits; Mechanical damage to the sensor; Sensor wiring problems; Low quality urea (AdBlue).
How do I fix a P24F4 diagnostic trouble code?
To fix P24F4: Check connections and sensor wiring harness. Clean the NOx sensor with a special compound. Check the quality and level of AdBlue. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P24F4?
Limited driving only, diagnose soon
How much does it cost to fix P24F4?
The estimated repair cost for P24F4 is $167–444. Actual cost depends on your vehicle, location, and labor rates.
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