P2337 OBD Error Code: Problem & Solutions

<<See All OBD Codes

The trouble code P2337 can be described as Cylinder 2 Above Knock Threshold. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. This would also give rise to the illumination of the check engine light.

If the engine control module would detect a variation in the voltage coming from the knock sensor circuit for cylinder 2 that is outside the parameters set by the automobile manufacturer, then it would store the P2337 error code. This would also give rise to the illumination of the check engine light.

What causes this problem with the Cylinder 2 Above Knock Threshold?

• There can be distorted knock sensor
• Knock sensor harness is open or small
• Knock sensor circuit might have inadequate electrical connection
• Faulty PCM

1. Knock Sensor - When the knock sensor starts to fail, then you might start hearing loud noises coming from the engine that almost resembles thumping sounds. The longer you go without fixing this problem, the louder those sounds would get. Buy top notch knock sensor from us at economical prices.
2. Electronic Control Unit - ECU monitors the temperature differences in the boost converter with the help of the temperature sensors to prevent the converter from overheating and malfunctioning. Thus, replace faulty ECU immediately.
3. Spark Plugs - Most of the time, the spark plugs protect the devices from getting damage and help in ignition process by regulating the current. These are usually easy to replace and are very cheap solution to any OBD problem. Thus, replace the faulty ones now!
4. Engine Control Module - ECM failures and faults can be very difficult to find and resolve as these are very rare and might require a complete reprogramming of the system to avoid wrong codes from getting stored in the system, leading to misdiagnosis. Replace it now!
5. Intake Manifold - One of the most intriguing components of the internal combustion engine is the intake manifold. Responsible for the even distribution of the air/fuel mixture to each cylinder, the intake manifold also serves as a mount for the carburettors (on older engines) and fuel injectors (on modern engines). Thus, replace damaged parts now!
6. Powertrain Control Module - Faulty PCM can disrupt the normal functioning of the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error and thus can lead to misdiagnosis.
7. Diagnostic Tool - In order to be that DIY guy, you need few diagnostic tools to get your car problems pointed out easily. Our diagnostic tools collection will come handy to do so, so why not have a look?

We care for our customers and that’s why we can totally understand your problem. That’s the reason why we have listed out some major symptoms behind the flashing up of OBD Code P2337. They are mentioned here as follows:

Common Symptoms

• Visibility in the check engine light
• The performance of the engine might not be good
• Issues related to diminishing fuel economy
• Noise might start coming from engine
• Other codes might also appear

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P2337:

• Carefully adjust the faults in the PCM
• The knock sensor connector should be restored to working order
• Rehabilitate the defaults in the spark plug
• The malfunctioning wiring should be repaired or replaced as per the need
• Recondition the non-functioning knock sensor
• It is necessary to perform proper service of the unsound knock sensor wiring
• Adjust the flawed fuel injector

Now are you thinking that from where will you purchase these car parts? You have arrived at the right place. We at Parts Avatar care for our customers, that’s why we provide best quality of spark plug, intake manifold, fuel injector, knock sensor, cylinder head gasket powertrain control module, engine control module, pcm car, ecm car, ecu car, pcm module, ecm module at marketable prices.

Do you wish to diagnose P2337 error code easily? Here are some steps which you should follow in order to diagnose this fault code:

The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle. Use the vehicle information source to search for applicable technical service bulletins (TSB). If you locate a TSB that matches the vehicle make and model, symptoms exhibited, and the code stored, it will help you to arrive at a diagnosis. You may also need to obtain diagnostic flow charts, wiring diagrams, connector face views, connector pin out charts, component locations, and component testing procedures/specifications from the vehicle information source. All this information will be needed to correctly diagnose the stored code P2337. After that test drive the vehicle to see if the code P2337 is reset. Drive until one of two things happens: Either the PCM enters readiness mode or the code is reset. If the code is reset, continue with the diagnosis. If it is not, you are dealing with an intermittent condition which may have to worsen before an accurate diagnosis may be achieved. Now if the code has been restored, then you must continue with the diagnosis. One should obtain connector face views, connector pin out charts, component locator charts, wiring diagrams, and diagnostic flow charts by utilizing your source of vehicle information. A visual inspection of associated wiring and connectors should be performed. Make sure to repair or restore the wiring that has been cut, burned, or flawed. The scheduled maintenance would include the replacement of spark plug wires and boots. Now if the automobile is beyond the recommended maintenance interval for a tune up, then it would mean that there are some faults in the spark plug wires/boots which are giving rise to P2337 error code. Once the PCM has been disconnected, then the DVOM should be utilized to inspect the continuity in the knock sensor circuit. Since the knock sensor typically threads into the engine block, then you must utilize caution not to get burned with coolant or oil whenever the sensor is being removed. The continuity through the sensor and back to the PCM connector should be inspected properly. The P2337 fault code can generally be related to a PCM programming error, faulty knock sensor or spark knocks.

Common Mistakes When Diagnosing The P2337 Code

The technician might think that the engine's knock sensor is quirky. If the knock sensor has reported a problem, it is quite possible that the issue must be real. Defective knock sensors are known to occur; by restoring a sensor mistakenly will waste resources without doing anything to solve the root issue.