P0153
O2 Sensor Circuit Slow Response Bank 2 Sensor 1
2018-2025 Fiat Cronos 1.3L I4 Flex Firefly
Moderate SeverityPowertrainGeneric (SAE)
Description
The upstream O2 sensor on Bank 2 is responding too slowly.
Symptoms
- Check Engine Light
- Poor fuel economy
- Failed emissions
Common Causes
- Aging sensor
- Contaminated sensor
- Exhaust leak
Diagnostic Steps
- Monitor switching rate
- Check for leaks
- Test response time
Repair Notes
Replace O2 sensor.
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
P0153 on Other Vehicles
Fiat 124 Spider
2017-2020 1.4L I4 Turbo
Fiat 126p Maluch
1973-2000 0.65L I2 Air-Cooled
Fiat 126p Maluch
1987-2000 0.7L I2 Air-Cooled
Fiat 500
2012-2019 1.4L I4
Fiat 500 Abarth
2012-2019 1.4L I4 Turbo
Fiat 500 BR
2011-2020 1.4L I4 Flex Fire Evo
Fiat 500 PL
2007-2025 1.0L I3 Hybrid FireFly 70
Fiat 500 PL
2007-2025 1.2L I4 Fire 69
Common Questions
What does code P0153 mean on a 2018-2025 Fiat Cronos?
P0153 stands for "O2 Sensor Circuit Slow Response Bank 2 Sensor 1". The upstream O2 sensor on Bank 2 is responding too slowly.
What are the symptoms of P0153 on a Fiat Cronos?
Common symptoms of P0153 include: Check Engine Light, Poor fuel economy, Failed emissions.
What causes P0153 on a 2018-2025 Fiat Cronos?
Common causes of P0153 include: Aging sensor, Contaminated sensor, Exhaust leak.