P0133moderate severityPowertrain
O2 Sensor Circuit Slow Response Bank 1 Sensor 1
on 2014 Jeep Cherokee 2.4L I4 · 4WD
What this code means
The upstream O2 sensor on Bank 1 is responding too slowly to fuel mixture changes.
Symptoms
- Check Engine Light
- Poor fuel economy
- Failed emissions test
- Slight hesitation
Common causes
- Aging O2 sensor
- Contaminated sensor (oil/coolant/fuel additives)
- Exhaust leak
- Wiring issue
Diagnostic steps
- Monitor O2 sensor switching frequency (should be >6 switches in 10 sec)
- Check for exhaust leaks
- Inspect sensor for contamination
- Test response to induced rich/lean
Repair notes
Replace O2 sensor. This is a common wear item.
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Other Powertrain codes on this vehicle
P0001
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P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1