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P1137 Saturn Code - HO2S Bank 1 Sensor 2 Lean Or Low Voltage

Quick Answer

The P1137 diagnostic trouble code (DTC) for Saturn vehicles indicates an issue with the Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2, specifically indicating a lean fuel mixture or low voltage condition. Common causes include Faulty HO2S Bank 1 Sensor 2, Vacuum leak in the intake system, Fuel delivery issue. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1137 Saturn indicates HO2S Bank 1 Sensor 2 Lean Or Low Voltage.
Common causes
Common causes include Faulty HO2S Bank 1 Sensor 2, Vacuum leak in the intake system, Fuel delivery issue.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1137 Saturn Description

The P1137 diagnostic trouble code (DTC) for Saturn vehicles indicates an issue with the Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2, specifically indicating a lean fuel mixture or low voltage condition. This sensor is responsible for monitoring the oxygen levels in the exhaust gases after they have passed through the catalytic converter. The data provided by this sensor is crucial for the Engine Control Module (ECM) to adjust the air-fuel ratio for optimal combustion efficiency.

OBDII Code P1137 Saturn - HO2S Bank 1 Sensor 2 Lean Or Low Voltage
P1137 Saturn Code - HO2S Bank 1 Sensor 2 Lean Or Low Voltage

Common Causes of P1137 Saturn

  1. Faulty HO2S Bank 1 Sensor 2
  2. Vacuum leak in the intake system
  3. Fuel delivery issue
  4. Clogged fuel injector
  5. ECM malfunction

Symptoms of P1137 Saturn

  1. Decreased fuel efficiency
  2. Engine hesitation or misfires
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Increased emissions

How to Fix P1137 Saturn

  1. Perform a diagnostic scan to confirm the P1137 code and pinpoint the exact cause of the issue.
  2. Inspect the HO2S Bank 1 Sensor 2 for any damage or contamination and replace if necessary.
  3. Check for any vacuum leaks in the intake system and repair as needed.
  4. Test the fuel delivery system and replace any faulty components such as the fuel pump or fuel filter.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1137 Saturn

The typical repair costs for addressing a P1137 code on a Saturn vehicle may range from $150 to $400, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to contact local auto repair shops for a more accurate estimate.

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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.

Frequently Asked Questions about P1137 Saturn Code

1. What does the OBDII code P1137 mean for a Saturn?

The P1137 code indicates that the heated oxygen sensor (HO2S) on Bank 1 Sensor 2 is detecting a lean condition or low voltage, suggesting issues with fuel mixture or sensor performance.

2. What are the common symptoms of the P1137 code in a Saturn?

Symptoms may include poor fuel economy, reduced engine performance, rough idle, hesitation during acceleration, and an illuminated Check Engine Light.

3. What causes the P1137 code in a Saturn?

Common causes include a faulty HO2S Bank 1 Sensor 2, exhaust leaks, wiring issues, fuel system problems, or a lean air-fuel mixture due to vacuum leaks.

4. How do I diagnose the P1137 code on my Saturn?

Diagnose by inspecting the oxygen sensor, checking for exhaust leaks, verifying proper fuel pressure, and testing the wiring and connectors for damage or corrosion.

5. Can I drive with the P1137 code on my Saturn?

While it may be possible to drive short distances, ignoring the code can lead to further engine damage, reduced performance, and increased emissions. Prompt repairs are recommended.

6. How do I fix the P1137 code on a Saturn?

Repairs may involve replacing the HO2S Bank 1 Sensor 2, fixing exhaust leaks, repairing damaged wiring, or addressing fuel system issues causing a lean condition.

7. How much does it cost to fix the P1137 code on a Saturn?

The cost can vary depending on the repair needed. Replacing the oxygen sensor typically costs $150–$300, while repairs for exhaust leaks or wiring issues may vary.

8. Can a vacuum leak trigger the P1137 code in a Saturn?

Yes, a vacuum leak can cause a lean air-fuel mixture, which might trigger the P1137 code due to abnormal oxygen sensor readings.

9. How can I prevent the P1137 code from occurring again?

Regular maintenance, such as inspecting sensors, ensuring proper fuel system function, and checking for exhaust leaks, can help prevent the code from recurring.

10. Does the P1137 code affect emissions in a Saturn?

Yes, the code can cause higher emissions due to improper air-fuel mixture and reduced catalytic converter efficiency.

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