P23BF
NOx Sensor Performance - Slow Response Low to High Bank 1 Sensor 3
P23BF is an OBD-II diagnostic trouble code meaning: NOx Sensor Performance - Slow Response Low to High Bank 1 Sensor 3. Common causes: nox sensor malfunction, nox sensor contamination. Estimated repair cost: $167–444.
Symptoms
- Increased fuel consumption
- Check Engine Light Illuminates
- Reduced engine power
- Increased NOx emissions
- Rough engine idling
Causes
- NOx sensor malfunction
- NOx sensor contamination
- Problems with wiring to the sensor
- Low quality urea (AdBlue)
- Engine control unit malfunction
How to Fix
- Check the status of the NOx sensor
- Check the integrity of wiring and connectors
- Clean the sensor from dirt (if possible)
- Replace NOx sensor if necessary
- Check the quality and level of AdBlue fluid
Related codes
Error P23BF by Vehicle Brand
FAQ
What does the P23BF code mean?
P23BF is an OBD-II diagnostic trouble code that indicates: NOx Sensor Performance - Slow Response Low to High Bank 1 Sensor 3
What causes a P23BF error code?
The most common causes of P23BF include: NOx sensor malfunction; NOx sensor contamination; Problems with wiring to the sensor; Low quality urea (AdBlue).
How do I fix a P23BF diagnostic trouble code?
To fix P23BF: Check the status of the NOx sensor. Check the integrity of wiring and connectors. Clean the sensor from dirt (if possible). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P23BF?
Yes, but get it checked soon
How much does it cost to fix P23BF?
The estimated repair cost for P23BF is $167–444. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat