P0137 2012 Ford Fusion Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

This code indicates a problem with the O2 sensor circuit, specifically low voltage detected from Bank 1 Sensor 2.

Common symptoms include poor fuel economy, rough idling, engine hesitation, and an illuminated check engine light.

Potential causes may include a faulty O2 sensor, damaged wiring or connectors, exhaust leaks, or issues with the vehicle's computer system.

Diagnosing the issue involves checking the O2 sensor's wiring and connectors, inspecting for exhaust leaks, and testing the sensor's voltage output using a multimeter.

It is generally not recommended to drive with a P0137 code for an extended period as it can lead to decreased fuel efficiency and potential damage to the catalytic converter.

Repair options may include replacing the Bank 1 Sensor 2 O2 sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, and clearing the code with an OBDII scanner.

While you can clear the code with an OBDII scanner, it is important to address the underlying problem to prevent further issues and ensure your vehicle operates efficiently.

The cost can vary depending on the specific cause of the code, but it typically ranges from $100 to $300 for parts and labor.

Yes, a P0137 code can lead to emissions test failure due to the impact on the vehicle's emissions control system.

O2 sensors generally have a lifespan of 60,000 to 100,000 miles, so it's recommended to replace them within this mileage range to prevent recurring P0137 codes.