P2204
NOx Sensor Circuit Intermittent Bank 1
2006-2011 BMW 325i 3.0L I6 N52 🇩🇪
Moderate SeverityPowertrain
Description
Intermittent signal from the NOx sensor on bank 1.
Symptoms
- Intermittent check engine light
- Erratic SCR operation
Common Causes
- Loose connection
- Damaged wiring
- Sensor connector moisture ingress
Diagnostic Steps
- Wiggle test wiring and connector
- Check for water intrusion
- Monitor signal stability
Repair Notes
Clean and secure connector. Replace sensor or repair wiring if intermittent.
Related Codes
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- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P2204 on Other Vehicles
Common Questions
What does code P2204 mean on a 2006-2011 BMW 325i?
P2204 stands for "NOx Sensor Circuit Intermittent Bank 1". Intermittent signal from the NOx sensor on bank 1.
What are the symptoms of P2204 on a BMW 325i?
Common symptoms of P2204 include: Intermittent check engine light, Erratic SCR operation.
What causes P2204 on a 2006-2011 BMW 325i?
Common causes of P2204 include: Loose connection, Damaged wiring, Sensor connector moisture ingress.