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P0137 Pontiac Code - HO2S Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The P0137 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the oxygen sensor circuit for Bank 1, Sensor 2. Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust system leaks. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0137 Pontiac indicates HO2S Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust system leaks.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0137 Pontiac Description

The P0137 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the oxygen sensor circuit for Bank 1, Sensor 2. This sensor is located downstream of the catalytic converter and is responsible for monitoring the oxygen levels in the exhaust gases. The sensor sends signals to the engine control module (ECM) to help adjust the air-fuel mixture for optimal combustion efficiency.

OBDII Code P0137 Pontiac - HO2S Circuit Low Voltage Bank 1 Sensor 2
P0137 Pontiac Code - HO2S Circuit Low Voltage Bank 1 Sensor 2

Common Causes of P0137 Pontiac

  1. Faulty oxygen sensor
  2. Wiring or connector issues
  3. Exhaust system leaks
  4. Engine misfires
  5. Issues with the ECM or related components

Symptoms of P0137 Pontiac

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Poor acceleration
  4. Increased emissions
  5. Illuminated check engine light

How to Fix P0137 Pontiac

  1. Perform a visual inspection of the oxygen sensor and its wiring for any signs of damage or corrosion.
  2. Test the oxygen sensor using a multimeter to check for proper voltage readings.
  3. Replace the oxygen sensor if it is found to be faulty.
  4. Clear the DTC and reset the ECM to see if the code reappears.
  5. Check for any exhaust leaks or engine misfires that could be affecting the oxygen sensor readings.

Cost to Fix P0137 Pontiac

The cost of repairing a P0137 code on a Pontiac vehicle can vary depending on the specific model and year, as well as the location and labor rates of the auto repair shop. Typically, the cost of replacing an oxygen sensor ranges from $100 to $250, including parts and labor. Additional costs may apply if other components need to be repaired or replaced. It's recommended to consult with a qualified mechanic for a more accurate estimate based on your vehicle's specific needs.

What does this mean?

Tech Notes for P0137 Pontiac

Replacing the Rear Heated Oxygen Sensor (HO2S) Bank 1 usually takes care of the problem.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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