Error Code P2336: What It Means & What To Do?

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The trouble code P2336 can be elucidated as Cylinder 1 Above Knock Threshold. This code is a generic trouble code, meaning it applies to all vehicles equipped with the OBD-II system, especially those made from 1996 up to present. It’s also more common among Audi, Citroen, Chevrolet, Ford, Hyundai, Nissan, Peugeot, and Volkswagen vehicles. Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model, powertrain configuration type, to another.

Want to learn something more about the P2336 fault code? This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another. The knock sensor circuit for cylinder 1 is being monitored by the engine control module. This trouble code would be set by the ECM when the knock sensor circuit for cylinder 1 would not be as per the specifications set by the manufacturer.

What causes this problem with the Cylinder 1 Above Knock Threshold?

• There can be inoperative knock sensor
• There can be opened or shorted knock sensor harness
• Knock sensor circuit inferior electrical connection
• Quirks in the PCM

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• Check engine light might come into signal
• Diminishing fuel efficiency
• Noises from car engine
• Declining engine performance
• Appearance of other codes

The repairs which you will have to do to correct this fault code are simply straightforward; you can surely pinpoint the necessary repairs on the basis of your diagnosis. Have a look at some common fixes:

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

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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 P2336.
• After that test drive the vehicle to see if the code P2336 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 P2336 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 P2336 fault code can generally be related to a PCM programming error, faulty knock sensor or spark knocks.

Common Mistakes When Diagnosing The P2336 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.