P2339 - OBD Trouble Code

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The trouble code P2339 can be defined as Cylinder 4 Above Knock Threshold. The specific repair steps can vary as it depends upon the vehicle make and model. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.

1. Knock Sensor - Do you know that you car engine would start to get damaged if you will let this issue escalate without restoring the bad knock sensor, then your vehicle will begin to increasingly drag and jerk around. It would be nice if you get it replaced on time. We have top notch knock sensor online at affordable prices.
2. Engine Control Module - There can be some engine performance issues due to faulty engine control module. If the ECM fails or has any problems it can lead to performance issues with the vehicle like misfires, hesitation, loss of power, and sometimes even decreased fuel economy.
3. Intake Manifold - An intake manifold is a component that delivers either air or an air/fuel mixture to the cylinders. The design of these components varies widely from one application to another, but they all perform that same basic function and they all have a single input and multiple outputs. In carbureted engines, the intake manifold connects the carburettor to the intake ports. In fuel-injected engines, the intake manifold connects the throttle body to the intake ports. Replace affected intake manifold now!
4. Spark Plugs - Spark plugs are easy to replace and are inexpensive too. They help in delivering the electric current from the ignition system to the combustion chamber of the spark ignition engine to ignite the compressed air to fuel mixture by an electric spark. Thus, replace them now!
5. Powertrain Control Module - PCM stands for powertrain control module. It is a car part, a control unit which is utilized on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit (TCU).
6. Fuel Injector - Faulty fuel injector, it will cause rough idles and difficulty in starting. Also, it will affect the fuel economy and engine performance. Fuel injector can also crack or break leading to leakages and should be replaced immediately.
7. Electronic Control Unit - If your automobile's check engine light remains on constantly, and never goes off, there's a good chance that your vehicle has a damaged electronic control unit. There are a lot of reasons why a car's check engine light will remain on. The most common reason is a defective ECU.
8. Diagnostic Tools - It is always advisable to use correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in efficient manner. Buy new quality diagnostic tools from us today!

Our main motive is to achieve customer satisfaction as for us our customers are everything and that’s why we will help you to diagnose P2339 code by mentioning some major symptoms below:

Common Symptoms

• Visibility in the check engine light
• The engine performance might be reduced
• Issues related to engine noise
• Diminishing fuel mileage
• Flashing up of other codes

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 P2339:

• Repair or replace the quirky wiring
• Recondition the non-functioning PCM
• Adjust the flawed knock sensor
• The malfunctioning knock sensor wiring should be repaired or replaced as per the need
• You must fix the defective fuel injector
• Make sure to mend the faulty spark plug
• It is essential to restore the flawed knock sensor connector

However, if you face any issue then we have stocked a wide range of best priced 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 and more to help you out in fixing your car.

Here are some steps which you should follow in order to diagnose this fault code:

This is a general type of error code which is diagnosed with the help of a scanner. Utilize 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 P2339. After that test drive the vehicle to see if the code P2339 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 P2339 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 P2339 fault code can generally be related to a PCM programming error, faulty knock sensor or spark knocks.

Common Mistakes When Diagnosing The P2339 Code

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