P2200high severityPowertrain
NOx Sensor Circuit Bank 1
on 1998 Acura CL 3.0L V6 · FWD
What this code means
Malfunction in the NOx sensor circuit on bank 1. Sensor may not be providing accurate readings.
Symptoms
- Check engine light
- Failed emissions
- SCR system may deactivate
Common causes
- Failed NOx sensor
- Wiring damage
- Connector corrosion
- ECM fault
Diagnostic steps
- Check NOx sensor connector
- Measure heater circuit
- Monitor sensor output with scan tool
Repair notes
Replace NOx sensor bank 1. Verify wiring integrity first.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1