P2204
NOx Sensor Circuit Intermittent Bank 1
1999-2000 BMW 528iT E39 2.8L I6 🇩🇪
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
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- 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 1999-2000 BMW 528iT E39?
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 528iT E39?
Common symptoms of P2204 include: Intermittent check engine light, Erratic SCR operation.
What causes P2204 on a 1999-2000 BMW 528iT E39?
Common causes of P2204 include: Loose connection, Damaged wiring, Sensor connector moisture ingress.