P0136
O2 Sensor Circuit Malfunction Bank 1 Sensor 2
Generic code
Fuel and Air Metering
Medium severity
Moderate repair
Free on OBD DashX
Want real-world data on P0136?
See which problems come with P0136, how often it shows up in other vehicles, and how to fix it — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
What P0136 means
- The fault code P0136 indicates that there is an issue with the circuit for the oxygen sensor in bank 1, sensor 2. This sensor is responsible for measuring the oxygen content in the exhaust gases after they have passed through the catalytic converter. If this sensor is not functioning properly, it can cause a variety of engine performance issues.
Possible symptoms
- Illuminated check engine light
- Decreased fuel efficiency
- Rough idle or stalling
- Reduced engine power or acceleration
Possible causes
- Failed oxygen sensor
- Faulty wiring or connections in the circuit
- Loose or corroded electrical connections
- Failed engine control module (ECM)
- Exhaust leak
Related parts
- Oxygen Sensor: This is one of the parts that fails very commonly. It measures the amount of oxygen to ensure proper combustion. Problems in the Oxygen Sensor lead to poor fuel economy
Possible solutions
- Replace the oxygen sensor
- Check and repair any damaged wiring or connections
- Tighten or clean any loose or corroded electrical connections
- Replace the engine control module (ECM) if necessary
- Repair any exhaust leaks
Free on OBD DashX
P0136 on OBD DashX
Real-world causes, how often this code shows up, and the fix — step by step.
Open P0136 No sign-up needed · available in 10 languagesScan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.