P2328 - OBD Trouble Code

It is the engine control module which would examine the voltage of the ignition coil ‘J’. This trouble code would be set by the ECM when the voltage of the ignition coil ‘J’ primary control circuit would not be as per the parameters set by the manufacturer.

What causes this problem with the Ignition Coil "J" Primary Control Circuit High?

• Imperfect Ignition Coil 'J'
• Issue of unbolted Ignition Coil 'J' harness
• Unacceptable electrical connection in the Ignition Coil 'J' circuit
• Defective relay or blown fuse
• PCM failure
• Quirks in the camshaft or crankshaft sensor
• Some issues related to the wiring

1. Oxygen Sensor - The O2 sensor can also be at fault leading to lean or rich engine conditions and thus affecting the engine performance and improper fuel consumption. Buy new sensor and replace the faulty one now!
2. Engine Control Module - The solenoid might cause a short in the engine control module because of corrosion in the solenoid or the wire running from the solenoid to the ECM harness.
3. Electronic Control Unit - The ECU power management control module keeps in check the hybrid battery charging functions. If the ECU is faulty, the battery pack will not be able to properly get charged and thus, the ECU might need replacement.
4. Fuel Injector - If there is a leakage in the fuel injectors, then it might cause rise in the fuel consumption, fuel odours around the vehicle and hard starting. You can always rely on us as we have best auto parts for our customers.
5. Ignition Coil - One major sign of a defective ignition coil is poor fuel economy. If you notice that your automobile is getting noticeably less mileage than it was before, then it could mean that there faulty ignition coil. Get it checked and replace if needed.
6. Powertrain Control Module - A trouble with the PCM would mean that it is unable to determine the right fuel mixture and would send the car engine either more or less fuel than it requires. Now when the engine gets more, the carbon emission would increase and fuel economy would drop. In case of the opposite, the engine will choke, stutter, and might start stalling sometimes.
7. Fuel Tank Pressure Sensor - The fuel tank must maintain proper pressure to the fuel to mix well with the oxygen, for proper combustion as it enters the engine for combustion process. Also, it ensures a consistent supply of fuel to the engine for combustion. Thus, replace faulty sensor now!
8. Diagnostic Tool - Usually any OBD code problem requires deep insight into the problem and high grade tools in order to fix it properly. Thus, buy quality diagnostic tools form us!

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2328 here:

Common Symptoms

• The check engine light can start illuminating
• The engine performance might be reduced
• Diminishing fuel mileage
• There might be some other related 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 P2328:

• Repair or replace the quirky fuel injector
• Rehabilitate the defaults in the ignition coil wiring
• It is essential to restore the flawed ignition coil
• The malfunctioning wiring should be repaired or replaced as per the need
• It is necessary to perform proper service of the unsound engine parts
• Carefully adjust the faults in the camshaft or crankshaft sensor
• The PCM should be restored to working order
• Recondition the non-functioning spark plug
• Adjust the flawed ignition coil connector

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If you want to easily diagnose this trouble code, then you must follow the steps which are mentioned here as below:

• 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 P2328.
• After that test drive the vehicle to see if the code P2328 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.
• Wiring on top of the engine is often defective due to wildlife attempting to stay warm in cold climates.
• The DVOM should be used to inspect the voltage and ground circuits at the ignition coil. If no voltage has been detected, then you should check the system relay and associated fuses. Restore the faulty relays or blown fuses as per the requirement.
• If voltage and ground have been detected at the coil, examine the corresponding ground circuit at the PCM connector with the engine running.
• If ground pulse is detected there, then there is an open circuit between the coil as well as the PCM. If no ground pulse is discovered there, then there is some fault in the PCM or there might be PCM programming error.

Common Mistakes When Diagnosing The P2328 Code

• If the trouble code P2328 is being diagnosed by a mechanic, then he might replace the ignition coils and spark plugs and might not realize that it is the wiring and connectors which should have been restored in reality.
• Another major mistake might be to replace primary damaged wiring with an incorrect size wire.