P0137 Nissan:Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
If you own a Nissan and have been experiencing issues with your vehicle’s performance, you may have come across the P0137 code. This code indicates a problem with the heated oxygen sensor circuit, specifically in bank 1 sensor 2. If left unaddressed, this issue can lead to decreased fuel efficiency and potential damage to your vehicle’s engine. However, with the right knowledge and tools, fixing this problem is possible. In this article, we will discuss what the P0137 code means, its common causes, and how to fix it.
Most models of Nissan cars will work with the fixes we will discuss for the P0137 code. This includes popular models such as the Nissan Altima, Maxima, Sentra, Rogue, and Pathfinder.
When the P0137 code appears, it means that the heated oxygen sensor circuit in bank 1 sensor 2 is experiencing low voltage. This can cause issues with the vehicle’s fuel efficiency and emissions.
To fix this issue, there are a few steps that can be taken. First, check the wiring and connections to ensure they are secure and not damaged. If that doesn’t solve the problem, the oxygen sensor may need to be replaced. It’s important to use a high-quality replacement part to ensure proper function.
Overall, addressing the P0137 code promptly can help maintain the performance and efficiency of your Nissan vehicle.
Key Takeaways:
Meaning: P0137 code in Nissan indicates low voltage in the heated oxygen sensor circuit of bank 1 sensor 2.
Causes: Faulty oxygen sensor, damaged wiring, vacuum leaks, exhaust leaks, and issues with the fuel system can cause P0137 code in Nissan.
Symptoms: Check Engine Light (CEL) illuminates, poor fuel economy, rough idling, and decreased engine performance are some of the symptoms of P0137 code in Nissan.
Fixes: Replacing the oxygen sensor, repairing or replacing damaged wiring, fixing vacuum and exhaust leaks, and addressing fuel system issues can fix P0137 code in Nissan.
P0137 Code Nissan:
The P0137 code in a Nissan vehicle indicates that there is a problem with the heated oxygen sensor circuit in bank 1 sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust system and sending that information to the engine control module (ECM). When the voltage from the sensor is too low, it means that there is a problem with the circuit. This can cause a variety of issues, including decreased fuel efficiency and increased emissions. To fix this problem, the circuit will need to be inspected and any damaged or faulty components will need to be replaced. This may include the sensor itself, the wiring, or the ECM. A professional mechanic should be consulted to diagnose and repair the issue.
Signs and Symptoms of P0137 Code in Nissan
The P0137 code in Nissan indicates a problem with the heated oxygen sensor circuit in bank 1 sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust system and sending signals to the engine control module (ECM) to adjust the air-fuel ratio for optimal performance. When this sensor fails or malfunctions, it can cause several symptoms that can affect the performance and efficiency of your Nissan vehicle.
Here are some of the signs and symptoms of the P0137 code in Nissan:
- Check Engine Light: The most common symptom of the P0137 code is the illumination of the check engine light on the dashboard. This light indicates that there is a problem with the engine or emissions system and requires immediate attention.
- Poor Fuel Economy: A faulty oxygen sensor can cause the engine to run rich or lean, which can result in poor fuel economy. You may notice a decrease in gas mileage and have to fill up more frequently than usual.
- Engine Misfires: If the oxygen sensor is not functioning properly, it can cause the engine to misfire or hesitate during acceleration. This can also lead to rough idling and stalling.
- Increased Emissions: A malfunctioning oxygen sensor can cause an increase in emissions, which can lead to a failed emissions test. This can also contribute to environmental pollution.
- Reduced Engine Performance: The oxygen sensor plays a crucial role in the engine’s performance and efficiency. If it is not working correctly, it can cause a reduction in power and acceleration.
If you notice any of these symptoms in your Nissan vehicle, it is essential to have it diagnosed and repaired as soon as possible. Ignoring the P0137 code can lead to further damage to the engine and emissions system, resulting in costly repairs. A qualified mechanic can use a diagnostic tool to identify the root cause of the problem and replace the faulty oxygen sensor if necessary.
P0137 Code Nissan:
The P0137 code in a Nissan indicates that there is a problem with the heated oxygen sensor circuit in bank 1 sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust system and sending that information to the engine control module (ECM). When the ECM detects that the voltage from the sensor is too low, it triggers the P0137 code.
There are several possible causes of the P0137 code in a Nissan, including:
- Faulty oxygen sensor: The most common cause of the P0137 code is a faulty oxygen sensor. Over time, the sensor can become contaminated or damaged, which can cause it to send incorrect readings to the ECM.
- Wiring issues: If there is a problem with the wiring that connects the oxygen sensor to the ECM, it can cause the voltage to drop and trigger the P0137 code.
- Exhaust leaks: If there is a leak in the exhaust system, it can cause the oxygen sensor to send incorrect readings to the ECM, which can trigger the P0137 code.
- Faulty ECM: In rare cases, the P0137 code can be caused by a faulty ECM that is not properly interpreting the signals from the oxygen sensor.
If you are experiencing the P0137 code in your Nissan, it is important to have it diagnosed and repaired as soon as possible. Ignoring the problem can lead to decreased fuel efficiency, reduced engine performance, and even damage to other components in the vehicle.
To fix the P0137 code, the first step is to have the oxygen sensor and wiring inspected for damage or wear. If the sensor or wiring is found to be faulty, it will need to be replaced. If there is an exhaust leak, it will need to be repaired. In some cases, the ECM may need to be reprogrammed or replaced.
Overall, the P0137 code in a Nissan can be caused by a variety of issues, but it is typically related to a faulty oxygen sensor or wiring issue. If you are experiencing this code, it is important to have it diagnosed and repaired by a qualified mechanic to ensure the continued performance and safety of your vehicle.
Fixes for P0137 Code Nissan
The P0137 code in Nissan vehicles indicates a problem with the heated oxygen sensor circuit, specifically low voltage in bank 1 sensor 2. This can cause issues with the vehicle’s fuel efficiency and emissions. Here are some possible fixes for this code:
- Replace the oxygen sensor: The most common fix for this code is to replace the faulty oxygen sensor. This will ensure that the sensor is accurately measuring the oxygen levels in the exhaust and sending the correct signals to the engine control module.
- Check the wiring and connections: Sometimes the issue may not be with the sensor itself, but with the wiring or connections leading to it. Check for any damage or corrosion and repair or replace as necessary.
- Clean or replace the air filter: A dirty or clogged air filter can cause the engine to run rich, which can affect the oxygen sensor readings. Cleaning or replacing the air filter can help improve fuel efficiency and reduce emissions.
- Check for vacuum leaks: Vacuum leaks can also cause the engine to run rich, which can affect the oxygen sensor readings. Check for any leaks in the vacuum lines and repair or replace as necessary.
- Replace the catalytic converter: In some cases, a faulty catalytic converter can cause the oxygen sensor readings to be inaccurate. If all other fixes have been tried and the code persists, it may be necessary to replace the catalytic converter.
It’s important to address the P0137 code as soon as possible to prevent further damage to the vehicle and to ensure it is running efficiently. If you are unsure about how to fix the issue, it’s best to consult a professional mechanic.
How Much Will It Cost to Fix P0137 Code on Nissan?
The cost of fixing the P0137 code on a Nissan will depend on several factors, including the severity of the problem, the type of repair needed, and the mechanic’s hourly rate. In general, the cost of fixing this code can range from $100 to $500 or more.
If the problem is simply a faulty oxygen sensor, replacing it can cost between $100 and $300, depending on the make and model of your Nissan. However, if the issue is more complex, such as a damaged wiring harness or a malfunctioning catalytic converter, the cost of repairs can quickly add up.
It’s important to note that ignoring the P0137 code can lead to more serious problems down the line, such as decreased fuel efficiency and engine damage. Therefore, it’s best to address the issue as soon as possible to avoid more costly repairs in the future.
Possible Causes and Fixes of Code P0137 Nissan
| Possible Cause | Fix | Cost to Fix |
|---|---|---|
| Failed oxygen sensor | Replace oxygen sensor | $100-$300 |
| Wiring issues in oxygen sensor circuit | Repair or replace wiring | $100-$500 |
| Faulty PCM (Powertrain Control Module) | Replace PCM | $500-$1000 |
| Vacuum leak | Repair vacuum leak | $100-$500 |
| Fuel pressure issues | Check and repair fuel pressure issues | $100-$500 |
How Serious is the P0137 Code on a Nissan?
The P0137 code on a Nissan indicates a problem with the heated oxygen sensor circuit in bank 1 sensor 2. This code is not considered to be a serious issue, but it can cause problems with the vehicle’s performance and fuel efficiency.
If left untreated, the P0137 code can lead to more serious issues with the engine and emissions system. It is important to have the problem diagnosed and repaired as soon as possible to prevent further damage to the vehicle.
Fortunately, fixing the P0137 code on a Nissan is usually a straightforward process. The most common solution is to replace the faulty oxygen sensor, which can be done by a qualified mechanic or DIY enthusiast with some basic tools and knowledge.
Can You Still Drive with the P0137 Code on Your Nissan?
Yes, you can still drive your Nissan with the P0137 code, but it is not recommended. The code indicates that there is a problem with the heated oxygen sensor circuit, which can affect your vehicle’s fuel economy and emissions. If left unaddressed, it can also cause damage to other components of your engine.
It is best to have your Nissan diagnosed and repaired as soon as possible to prevent further damage and ensure optimal performance. You can take your vehicle to a certified mechanic or dealership to have it inspected and repaired.
Conclusion
Overall, the P0137 code in a Nissan indicates a problem with the heated oxygen sensor circuit in bank 1 sensor 2. This can lead to decreased fuel efficiency and potential damage to the engine over time. However, the issue can be resolved by replacing the faulty sensor or addressing any wiring or connection issues. It is important to address this issue promptly to ensure the longevity and proper functioning of your Nissan vehicle.
FAQ
What is P0137 code in Nissan?
P0137 code in Nissan refers to a fault in the heated oxygen sensor circuit, specifically in bank 1 sensor 2. This means that the sensor is not providing the expected voltage output to the engine control module (ECM).
What are the symptoms of P0137 code in Nissan?
The symptoms of P0137 code in Nissan may include poor fuel economy, rough idling, engine misfires, and a decrease in engine power. The check engine light may also illuminate on the dashboard.
What causes P0137 code in Nissan?
The most common causes of P0137 code in Nissan are a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning ECM. Other possible causes include a vacuum leak, exhaust leak, or a clogged catalytic converter.
How do I diagnose P0137 code in Nissan?
To diagnose P0137 code in Nissan, you will need an OBD-II scanner to read the code and determine the specific sensor that is causing the issue. You can then inspect the sensor and its wiring for any damage or corrosion. You may also need to perform a voltage test on the sensor to determine if it is functioning properly.
How do I fix P0137 code in Nissan?
To fix P0137 code in Nissan, you may need to replace the faulty oxygen sensor or repair any damaged wiring or connectors in the sensor circuit. If the issue is with the ECM, you may need to have it reprogrammed or replaced. It is also important to address any underlying issues, such as vacuum leaks or exhaust leaks, to prevent the code from reoccurring.
Learn about more p codes in Nissan here.
