NOx Sensor Circuit Range/Performance Bank 1
2016-2016 Chevrolet Impala 2.5L I4 Ecotec
The 2016 Chevrolet Impala is equipped with a 2.5L inline-4 engine. Below you'll find detailed p2201 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
NOx sensor on bank 1 is responding but values are outside expected range.
Symptoms
- Check engine light
- Poor emissions performance
- Possible SCR fault codes
Common Causes
- Degraded NOx sensor
- Exhaust leak near sensor
- Contaminated sensor element
Diagnostic Steps
- Compare actual NOx levels to expected at various loads
- Check for exhaust leaks
- Inspect sensor condition
Repair Notes
Replace NOx sensor if out of specification after leak check.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P2201 on Other Vehicles
Chevrolet Astro
1996-1996 4.3L V6 Vortec
Chevrolet Astro
1997-1997 4.3L V6 Vortec
Chevrolet Astro
1998-1998 4.3L V6 Vortec
Chevrolet Astro
1999-1999 4.3L V6 Vortec
Chevrolet Astro
2000-2000 4.3L V6 Vortec
Chevrolet Astro
2001-2001 4.3L V6 Vortec
Chevrolet Astro
2002-2002 4.3L V6 Vortec
Chevrolet Astro
2003-2003 4.3L V6 Vortec
Common Questions
What does code P2201 mean on a 2016-2016 Chevrolet Impala?
P2201 stands for "NOx Sensor Circuit Range/Performance Bank 1". NOx sensor on bank 1 is responding but values are outside expected range.
What are the symptoms of P2201 on a Chevrolet Impala?
Common symptoms of P2201 include: Check engine light, Poor emissions performance, Possible SCR fault codes.
What causes P2201 on a 2016-2016 Chevrolet Impala?
Common causes of P2201 include: Degraded NOx sensor, Exhaust leak near sensor, Contaminated sensor element.
Last updated: March 2026
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