P2341 OBD Error Code: Problem & Solutions

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Are you looking for more information with regards to P2341 error code? Then you are at the right place. The engine knocking which is also known as detonation or pinging is sensed by the knock sensor with the help of piezoelectric element. The sensor is placed close to the cylinder block, or the cylinder head and the intake manifold. A vibration of the knock from the cylinder block is identified as vibrational pressure which is further changed into a voltage signal and directed to the ECM, which then uses the signal to hold back the ignition timing and guard the engine from this defective pre-ignition.

If no sufficient fuel is permitted into the fuel injector by the cylinder, then it will allow the cylinder to run lean which generates an engine knock. Every time the injector is changed, the calibration number, which is on the side of the injectors have to be entered into the PCM. The error code P2341 will be set in the vehicle if the number is not entered into the PCM.

What causes this problem with the Cylinder 6 Above Knock Threshold?

• The knock sensor might be damaged.
• You will see an opening or short-circuit in the knock sensor harness.
• Bad electrical connection in the knock sensor circuit.
• Malfunctioning ECM.

1. Knock Sensor - The engine knock or the pinging noise is an indication that the knock sensor is defective. Change it instantly.
2. Cylinder Head Gasket - Overheating of the engine is a common symptom for a faulty cylinder head gasket. Replace it as quickly as possible.
3. Sensor Connector - A damaged sensor connector can cause the malfunctioning of the vehicle. Get rid of it as soon as possible.
4. Intake Manifold - You will find difficulty in accelerating your vehicle if the intake manifold is damaged. Get rid of it as soon as possible.
5. Engine Control Module - Engine stalling is one of the symptoms for a defective ECM which needs replacement as soon as possible.
6. Fuel Injector - Poor idling is a common symptom for a defective fuel injector. Get the replacement for fuel injector from PartsAvatar.
7. Spark Plug - Malfunctioning of the engine will take place if the spark plugs are broken or cracked. Replace or fix them as soon as possible.
8. Powertrain Control Module - Malfunctioning of the powertrain control module can arise due to power relay or voltage issues. Changing the defective PCM can help you to get rid of the P2341 error in your vehicle.

If you are facing OBD error code P2341, then there are significant common symptoms that can be felt or observed. We have worked out a list here to help you out in understanding this problem better.

Common Symptoms

• Flashing of the engine light or the service engine will indicate you with a warning light.
• There might be a loss/lack of power.

It is very important to fix the fault code P2341. So here are some ways with which you can correct this issue:

• Changing the damaged fuel injector.
• Replacing the defective spark plugs.

To do all this, you will need few high-quality auto parts such as PCM, ECM, spark plug, intake manifold, fuel injector, knock sensor, cylinder head, sensor connection and so on. From where will you get them? From your local store? Well, why go there when you can order quality parts with us while sitting in the comfort of your home. So, just browse through our website and order your needed parts today.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• Manufacturers will utilize a knock sensor or multiple knock sensors which goes easily into the engine block.
• At least 2 knock sensors are needed by each bank of cylinders for V-shaped engine blocks but other automobile makers will prepare their vehicle with knock sensor for a single cylinder.
• Bank 1 symbolizes the cylinder 1 of the engine bank and cylinder 1 is not available for bank 2.
• The excessive noise from the engine is identified by the knock sensor which is a single-wire sensor utilizing low voltage signal.
• The knock sensor might be ground if there is more noise, finishing the circuit and which deliver an input voltage signal of 5V to the PCM.
• The knock sensor is looked after by the PCM and it responds properly.
• Any abnormal noise from the knock sensor, the PCM will try to reduce it by adjusting the engine timing and reducing further damages.
• To carefully diagnose you will need a DVOM and scanner.
• You will also need a manufacturer’s service manual.
• Visually inspect the wires and the connectors.
• Repair the separated, eroded and damaged wires, connectors and other parts as needed.
• Retest the system after a successful diagnosis. If every component is in proper working condition, then attach a scanner to the diagnostic connector and recover the stored codes and freeze frame data.
• This step can be highly useful to determine if there are any erratic conditions which made to the code to get stored.
• Clear the codes and test the vehicle to see if the error returns.
• This can help you to know if the malfunction was erratic. Clear the codes again and test drive to see if the error reappears.
• There might be an erratic condition if the code refuses to return instantly.
• It can be quite challenging to diagnose this error code where at times you have to worsen this condition.
• Ensure that the engine is filled with clean oil.
• Carefully listen for adequate engine noise and proceed with the diagnosis.
• Before trying to diagnose this error, if there are other error codes in the PCM, it must be fixed.
• If unusual noises are head, a manual oil pressure test must be done and relate the findings with the specification of the manufacturer.
• Fix and change the damaged engine components as needed.
• Test drive the vehicle by clearing the codes to see if they reappear.
• If the engine functions normally with no issues, test the resistance of the sensor by separating the electrical connector from the affected sensor.
• Relate the findings with the specification of the manufacturer and change the sensor as required.
• Test drive the vehicle by clearing the codes to see if they reappear and ensure it is successful.
• Test for reference voltage, if the sensor works well by detaching the connector from the knock sensor.
• Check for burnt or shorted wires to the knock sensor, if you don’t find reference voltage.
• Most of the failures which have been reported by the technician are because of the engine oil which leaks into the knock sensor wires and connectors than that of the wires and connectors which are clean and dry.
• If everything functions properly, detach the connector from the knock sensor and related controllers.
• Do a continuity test and resistance test on all affected circuits.
• Relate the findings with the specification of the manufacturer and fix the circuit connectors which do not obey.
• Relate the findings with the specification of the manufacturer.
• Few sensors are placed near the engine which makes it impossible to test.
• Vehicles which are fitted with one such knock sensor should go through a diagnostic process which ensures that the knock sensor is the reason for failure.
• As you replace the knock sensor, make sure it does not lie in the coolant passage of engine block.
• Technicians might face severe skin burns if the knock sensor is removed from the coolant passage of the hot engine.

Common mistakes when diagnosing The P2341 code

• The calibration of the fuel injector must be entered in the PCM.
• Defective fuel injector.
• Damaged PCM.
• Problematic wires.