P23C2
NOx Sensor Delayed Response - High to Low Bank 1 Sensor 3
P23C2 is an OBD-II diagnostic trouble code meaning: NOx Sensor Delayed Response - High to Low Bank 1 Sensor 3. Common causes: nox sensor faulty (bank 1, sensor 3), damaged nox sensor wiring or connectors. Estimated repair cost: $89–278.
Symptoms
- Check Engine light comes on
- Possible problems with engine performance
- Increased fuel consumption
- Unstable engine idling
- Possible exhaust smell
Causes
- NOx sensor faulty (bank 1, sensor 3)
- Damaged NOx sensor wiring or connectors
- Leaks in the exhaust system
- NOx catalytic converter malfunction
- Problems with the ECU (electronic control unit)
How to Fix
- Check the NOx sensor wiring and connectors for damage.
- Check the NOx sensor to ensure it meets manufacturer specifications.
- Check the exhaust system for leaks.
- Check the NOx catalytic converter for problems.
- Replace the NOx sensor (bank 1, sensor 3) if it is faulty.
Related codes
Error P23C2 by Vehicle Brand
FAQ
What does the P23C2 code mean?
P23C2 is an OBD-II diagnostic trouble code that indicates: NOx Sensor Delayed Response - High to Low Bank 1 Sensor 3
What causes a P23C2 error code?
The most common causes of P23C2 include: NOx sensor faulty (bank 1, sensor 3); Damaged NOx sensor wiring or connectors; Leaks in the exhaust system; NOx catalytic converter malfunction.
How do I fix a P23C2 diagnostic trouble code?
To fix P23C2: Check the NOx sensor wiring and connectors for damage.. Check the NOx sensor to ensure it meets manufacturer specifications.. Check the exhaust system for leaks.. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P23C2?
Yes, but get it checked soon
How much does it cost to fix P23C2?
The estimated repair cost for P23C2 is $89–278. Actual cost depends on your vehicle, location, and labor rates.
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