NOx Sensor Circuit Bank 2 Malfunction
The P2213 code indicates a problem with the NOx sensor circuit on Bank 2 of the engine. The NOx sensor measures nitrogen oxide levels in the exhaust to optimize SCR system performance. A circuit fault can be due to wiring issues, sensor failure, or contamination, leading to incorrect readings and potential emissions system derating.
1. Most Common Causes
- Faulty NOx sensor
- Wiring or connector damage
- Exhaust leak near sensor
- Contaminated sensor (oil, fuel, coolant)
2. Symptoms You Will Notice
- Check Engine Light on
- Reduced engine performance
- Increased emissions
- Possible limp mode
3. Step-by-Step Diagnosis
Step 1: Scan for codes and verify P2213 is present.
Step 2: Inspect NOx sensor wiring and connectors for damage or corrosion.
Step 3: Check for exhaust leaks upstream of the sensor.
Step 4: Test sensor voltage and signal with a multimeter or scan tool.
Step 5: Replace sensor if all other checks pass.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause reduced performance and potential damage to the SCR system.
How much does it cost to fix?▼
The cost typically ranges from $200 to $600, including parts and labor, depending on the vehicle and sensor location.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.