BMW P1137 Code:O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 2
As a car owner, it’s essential to understand the various diagnostic trouble codes (DTCs) that your vehicle may encounter. One of the most common DTCs in BMW vehicles is the P1137 code, which indicates an issue with the O2 sensor heater circuit signal in bank 1 sensor 2. If you’re experiencing this problem, it’s crucial to know the meaning, causes, symptoms, and fixes for the BMW P1137 code. In this article, we’ll provide you with expert recommendations to help you resolve the issue and get your BMW back on the road.
BMW P1137 Code: Meaning, Causes, Symptoms and Fixes
The BMW P1137 code is a diagnostic trouble code (DTC) that indicates an issue with the O2 sensor heater circuit signal in bank 1 sensor 2. This means that the O2 sensor in the second position after the catalytic converter is not receiving the proper voltage to function correctly. The O2 sensor is responsible for monitoring the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air/fuel mixture. When the O2 sensor heater circuit signal is intermittent, it can cause the ECM to incorrectly adjust the air/fuel mixture, leading to poor engine performance, decreased fuel efficiency, and increased emissions. The most common causes of the P1137 code include a faulty O2 sensor, damaged wiring or connectors, or a malfunctioning ECM. Symptoms of the P1137 code may include a check engine light, rough idle, poor acceleration, and decreased fuel efficiency. To fix the issue, it is recommended to replace the faulty O2 sensor, repair any damaged wiring or connectors, or replace the ECM if necessary.
Signs and Symptoms of BMW P1137 Code
The P1137 code in BMW vehicles is related to the O2 sensor heater circuit signal intermittent bank 1 sensor 2. This code indicates that there is an issue with the oxygen sensor located after the catalytic converter on the bank 1 side of the engine. Here are some of the signs and symptoms that may indicate the presence of this code:
- Check Engine Light: The most common symptom of the P1137 code is the illumination of the check engine light on the dashboard. This light may appear as a steady light or a flashing light, depending on the severity of the issue.
- Poor Fuel Economy: Another symptom of this code is poor fuel economy. This is because the oxygen sensor is responsible for monitoring the amount of oxygen in the exhaust gases and adjusting the fuel injection accordingly. If the sensor is not functioning properly, it may cause the engine to run rich, which can lead to decreased fuel efficiency.
- Engine Misfires: In some cases, the P1137 code may cause the engine to misfire or run rough. This is because the oxygen sensor is not providing accurate information to the engine control module, which can cause the fuel injection to be incorrect.
- Failed Emissions Test: If the P1137 code is not addressed, it may cause the vehicle to fail an emissions test. This is because the oxygen sensor is responsible for monitoring the amount of pollutants in the exhaust gases and adjusting the fuel injection accordingly. If the sensor is not functioning properly, it may cause the vehicle to emit more pollutants than allowed by law.
If you notice any of these symptoms in your BMW vehicle, it is important to have it diagnosed and repaired as soon as possible. Ignoring the P1137 code can lead to further damage to the engine and other components, which can be costly to repair. A qualified mechanic can diagnose the issue and recommend the appropriate repairs to fix the problem.
Possible Causes of BMW P1137 Code
The P1137 code in BMW vehicles indicates an issue with the O2 sensor heater circuit signal in bank 1 sensor 2. This code can be triggered due to various reasons, including:
- Failed O2 Sensor: A faulty O2 sensor can cause the P1137 code to appear. The sensor may have failed due to age, wear and tear, or exposure to contaminants.
- Wiring Issues: Damaged or corroded wiring in the O2 sensor circuit can cause the sensor to malfunction and trigger the P1137 code.
- Faulty PCM: A problem with the powertrain control module (PCM) can cause the O2 sensor heater circuit signal to malfunction and trigger the P1137 code.
- Failed Heater Circuit: The heater circuit in the O2 sensor may have failed, causing the sensor to malfunction and trigger the P1137 code.
- Exhaust Leak: An exhaust leak near the O2 sensor can cause false readings and trigger the P1137 code.
- Fuel System Issues: Problems with the fuel system, such as a clogged fuel filter or a failing fuel pump, can cause the engine to run lean or rich, which can trigger the P1137 code.
- Vacuum Leaks: Leaks in the vacuum system can cause the engine to run lean, which can trigger the P1137 code.
It is important to note that the P1137 code can have multiple causes, and a thorough diagnosis is necessary to determine the exact reason for the code. It is recommended to seek the help of a professional mechanic to diagnose and fix the issue. Ignoring the P1137 code can lead to poor engine performance, reduced fuel efficiency, and potential damage to the engine.
Fixes for BMW P1137 Code
The P1137 code in BMW vehicles indicates an issue with the O2 sensor heater circuit signal intermittent bank 1 sensor 2. This can cause a variety of symptoms, including poor fuel economy, rough idling, and decreased engine performance. Fortunately, there are several fixes that can help resolve this issue.
1. Replace the O2 Sensor
One of the most common fixes for the P1137 code is to replace the faulty O2 sensor. This sensor is responsible for measuring the amount of oxygen in the exhaust gases and sending this information to the engine control module (ECM). A faulty sensor can cause inaccurate readings, leading to a variety of issues.
2. Check the Wiring and Connections
Another potential cause of the P1137 code is damaged or corroded wiring or connections. This can cause a weak or intermittent signal to the ECM, leading to inaccurate readings and poor engine performance. Checking the wiring and connections and repairing any damage can help resolve this issue.
3. Replace the ECM
In some cases, the issue may be with the ECM itself. If the ECM is not receiving accurate signals from the O2 sensor, it may need to be replaced. This is a more complex fix that should only be attempted by a qualified mechanic.
4. Clean or Replace the Catalytic Converter
A faulty catalytic converter can also cause the P1137 code to appear. If the converter is clogged or damaged, it can cause a buildup of exhaust gases, leading to inaccurate readings from the O2 sensor. Cleaning or replacing the catalytic converter can help resolve this issue.
5. Check for Vacuum Leaks
Finally, vacuum leaks can also cause the P1137 code to appear. These leaks can cause a variety of issues, including inaccurate readings from the O2 sensor. Checking for and repairing any vacuum leaks can help resolve this issue.
In conclusion, the P1137 code in BMW vehicles can be caused by a variety of issues, including a faulty O2 sensor, damaged wiring or connections, a faulty ECM, a faulty catalytic converter, or vacuum leaks.
How Much Will It Take to Fix BMW P1137 Code?
Fixing the BMW P1137 code can vary in cost depending on the root cause of the issue. The code indicates an intermittent signal in the O2 sensor heater circuit of bank 1 sensor 2. This means that the sensor is not receiving the proper voltage to function correctly, which can lead to poor engine performance and increased emissions.
The first step in fixing the issue is to diagnose the root cause. This can be done by checking the wiring and connections to the sensor, as well as testing the sensor itself. If the sensor is faulty, it will need to be replaced, which can cost anywhere from $100 to $300 depending on the make and model of the vehicle.
If the issue is with the wiring or connections, the cost can vary depending on the extent of the damage and the amount of labor required to fix it. In some cases, it may be a simple fix that only requires cleaning or tightening connections, while in other cases, it may require replacing damaged wiring or components.
In general, the cost to fix the BMW P1137 code can range from a few hundred dollars to over a thousand dollars depending on the severity of the issue and the amount of labor required to fix it. It is important to have the issue diagnosed and fixed as soon as possible to prevent further damage to the engine and to ensure optimal performance and fuel efficiency.
Possible Causes and Fixes of Code BMW P1137
| Cause | Fix | Cost |
|---|---|---|
| Failed O2 sensor heater circuit | Replace faulty O2 sensor | $100-$300 |
| Wiring issues in O2 sensor heater circuit | Repair or replace damaged wiring | $100-$200 |
| Failed PCM (Powertrain Control Module) | Replace faulty PCM | $500-$1000 |
| Failed fuse or relay in O2 sensor heater circuit | Replace faulty fuse or relay | $20-$50 |
Preventing BMW P1137 Code
The BMW P1137 code is a common issue that can be prevented by taking some simple measures. Here are some preventive measures that can help you avoid this code:
1. Regular Maintenance: Regular maintenance of your BMW vehicle is essential to prevent the P1137 code. This includes changing the oil and air filters, checking the spark plugs, and ensuring that the engine is running smoothly. Regular maintenance can help you identify any potential issues before they become major problems.
2. Use High-Quality Fuel: Using high-quality fuel can help prevent the P1137 code. Low-quality fuel can cause the engine to run poorly, which can lead to the code being triggered. Make sure to use fuel that meets the manufacturer’s specifications.
3. Check the Oxygen Sensor: The oxygen sensor is responsible for measuring the amount of oxygen in the exhaust system. If the sensor is faulty, it can cause the P1137 code to be triggered. Regularly checking the oxygen sensor can help prevent this issue.
4. Check the Wiring: Faulty wiring can also cause the P1137 code to be triggered. Make sure to check the wiring for any signs of damage or wear and tear. If you notice any issues, have them repaired immediately.
5. Use a Diagnostic Tool: Using a diagnostic tool can help you identify any potential issues with your BMW vehicle. This can help you prevent the P1137 code from being triggered. Make sure to use a high-quality diagnostic tool that is compatible with your BMW vehicle.
- Conclusion:
In conclusion, the BMW P1137 code can be prevented by taking some simple measures. Regular maintenance, using high-quality fuel, checking the oxygen sensor and wiring, and using a diagnostic tool can all help prevent this issue. By following these preventive measures, you can ensure that your BMW vehicle runs smoothly and efficiently, without any issues.
How Serious is the BMW P1137 Code?
The BMW P1137 code is a diagnostic trouble code that indicates an issue with the O2 sensor heater circuit signal in bank 1 sensor 2. While this code may not cause immediate harm to your vehicle, it is still a serious issue that should be addressed as soon as possible.
When the O2 sensor heater circuit signal is intermittent, it can cause a variety of problems with your BMW’s engine performance. This can include reduced fuel efficiency, decreased power, and even engine misfires. Additionally, if left untreated, this issue can cause damage to other components of your vehicle, leading to more costly repairs down the line.
If you are experiencing symptoms such as a check engine light, reduced engine performance, or unusual smells or sounds coming from your vehicle, it is important to have your BMW inspected by a qualified mechanic. They can diagnose the issue and recommend the appropriate repairs to get your vehicle back to optimal performance.
Overall, while the BMW P1137 code may not be an immediate threat to your safety, it is still a serious issue that should be addressed promptly to avoid further damage to your vehicle.
Can You Still Drive with the BMW P1137 Code?
If your BMW is showing the P1137 code, it means that there is an issue with the O2 sensor heater circuit signal in bank 1 sensor 2. While this code may not cause immediate harm to your vehicle, it is not recommended to continue driving with this code present.
The O2 sensor plays a crucial role in regulating the air-fuel mixture in your engine. If the sensor is not functioning properly, it can lead to decreased fuel efficiency, poor performance, and even damage to your engine over time. Additionally, the P1137 code can cause your vehicle to fail emissions tests, which can result in fines or other penalties.
It is best to address the issue as soon as possible by taking your BMW to a qualified mechanic or dealership. They can diagnose the root cause of the problem and recommend the necessary repairs to fix the issue. Ignoring the P1137 code can lead to more serious and costly problems down the road.
Conclusion
In conclusion, the BMW P1137 code indicates an issue with the O2 sensor heater circuit signal in bank 1 sensor 2. This can lead to a variety of symptoms, including decreased fuel efficiency and engine performance. The causes of this issue can range from a faulty sensor to a damaged wiring harness. It is important to address this issue promptly to prevent further damage to your vehicle. If you are experiencing this issue, we recommend consulting with a professional mechanic to diagnose and fix the problem.
FAQ
What does the BMW P1137 code mean?
The BMW P1137 code indicates an intermittent signal in the O2 sensor heater circuit of bank 1 sensor 2.
What are the symptoms of the BMW P1137 code?
The symptoms of the BMW P1137 code may include poor fuel economy, rough idling, and decreased engine performance.
What are the causes of the BMW P1137 code?
The causes of the BMW P1137 code may include a faulty O2 sensor, damaged wiring or connectors, or a malfunctioning engine control module (ECM).
How is the BMW P1137 code diagnosed?
The BMW P1137 code can be diagnosed using an OBD-II scanner, which will read the code and provide information on the specific issue causing the code.
Can I still drive my BMW with the P1137 code?
It is not recommended to drive your BMW with the P1137 code, as it can lead to further damage to your vehicle and decreased performance.
How can I fix the BMW P1137 code?
The fix for the BMW P1137 code may involve replacing the faulty O2 sensor, repairing damaged wiring or connectors, or replacing the engine control module (ECM).
Can I fix the BMW P1137 code myself?
While it is possible to fix the BMW P1137 code yourself, it is recommended to seek the assistance of a professional mechanic to ensure proper diagnosis and repair.
Learn about other similar BMW Fault Codes from our BMW OBD 2 Fault Code List.