When it comes to Nissan vehicles, the code P1137 can be a major issue. This code is typically found when the Powertrain Control Module (PCM) detects an unexpected “high” or “low” signal on the Swirl Control Valve (SCV) Control Position sensor circuit during the Controlled Combustion Mode (CCM) test. The code is often accompanied by poor engine performance and a decrease in fuel economy. Fortunately, there are several possible causes and solutions that can help diagnose and fix the problem. Unfortunately, most of them require the expertise of a certified mechanic. This article will discuss the possible causes and solutions to the Nissan code P1137, as well as the importance of professional diagnosis and repair.
Causes of Nissan Code P1137
The code P1137 is typically caused by a malfunction in the Swirl Control Valve (SCV) Control Position Sensor circuit. This could be caused by a damaged or disconnected wire, a malfunctioning SCV, or a faulty ECU. Additionally, a vacuum or exhaust leak can also cause the code to be triggered. In some cases, the code may be triggered due to a faulty oxygen sensor.
Solutions to Nissan Code P1137
The most common solution to the code P1137 is to diagnose and repair the SCV Control Position Sensor circuit. This could involve replacing the damaged or disconnected wire, replacing the faulty ECU, or replacing the SCV itself. Additionally, any vacuum or exhaust leaks should be checked and repaired. Lastly, the oxygen sensor should be checked and replaced if necessary.
Importance of Professional Diagnosis and Repair
Due to the complexity of the SCV Control Position Sensor circuit and the other possible causes of the Nissan code P1137, it is important to seek the help of a certified mechanic. A professional mechanic will be able to properly diagnose the issue and provide the necessary repairs. Additionally, they will be able to provide any preventative maintenance that may be required in order to prevent further issues with the code.
Conclusion
The Nissan code P1137 is a common issue, but can be difficult to diagnose and repair. Fortunately, there are several possible causes and solutions that can help diagnose and fix the problem. However, due to the complexity of the SCV Control Position Sensor circuit and the other possible causes of the code, it is important to seek the help of a certified mechanic in order to properly diagnose the issue and provide the necessary repairs.
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