What is the P0350 fault number? What is Ignition Coil Primary/Secondary Circuit Problem? How do you fix the P0350 fault code What causes is the P0350 error code?

What is the P0350 Fault Coding? What does it signify?

The powertrain control module, or PCM, continuously monitors the performance of the ignition coils. The fault code P0350 is stored by the PCM if it detects faults in one or more ignition coils’ primary or secondary circuits.

OBD-II equipped cars use an ignition system that removes unnecessary components, such as the distributor, cap timing roller, timing roller, spark plugwire, and timing roller. This type of system includes a separate ignition cylinder for each cylinder that is controlled by the PCM. They are located directly above the sparkplugs. There are two connecting wires for each coil. One wire connects to the battery supply, the other to the PCM. This cable is used by the PCM to activate or disable the coils.

The ignition coil converts a battery voltage into a high-voltage voltage and ignites fuel/air mixture in the combustion chambers. The system’s low voltage side is known as the “primary” Circuit and the high voltage side are called the “secondary” circuit. The primary circuit has the task of generating the high voltage spark necessary for the secondary. The PCM commands current for the primary circuit. It then reduces this current during full ignition. Secondary circuit outputs approximately 20-30 000 volts.

If the PCM detects a 10% deviation from the manufacturer’s specifications in the voltage signal, a code P0350 will be triggered. This code is not the only one. Other codes can be set depending on the ignition coil. The code’s last digit indicates which cylinder the fault occurred. For example, P0351 indicates cylinder 1. P0358 signifies cylinder #8

 

What are the Possible Reasons for the P0350 Fault code?

These are the most common reasons that P0350 fault codes are triggered:

  • – Defective ignition coil(s)
  • Damaged wires and connectors for ignition coils
  • – Ignition coil short circuit problems
  • – Defective ignition system relay
  • – Fused links and blown fuse
  • – Rarely, a PCM needs to be updated or is malfunctioning

 

What are the symptoms of P0350 Fault code?

You may experience the following symptoms if your vehicle has a code of P0350:

  • – Illumination for the check engine light
  • – Ignition error or misfire in one or more of the cylinders
  • – Reduced engine performance
  • – Increased fuel consumption
  • – Vehicle difficult to start
  • – Idle irregularity
  • – The engine should be hampered by sudden acceleration.
  • – The engine may not be able to produce enough power, especially during heavy loads.
  • – Setting other misfire-related codes (for instance P0300-P0312).

 

How do I fix the P0350 fault code?

Before proceeding with repairs, fault codes must be cleared and vehicles tested. Visual inspection should be done on spark plugs, ignition coils, and wires. It is possible to visually inspect the ignition coils, spark plugs and connectors if there is an active misfire in one cylinder. The ignition coil may be defective if the misfire moves to another cylinder.

The following repairs may be able to resolve the P0350 fault code:

  • – Replacing damaged ignition coils
  • Repair of damaged, melted, or broken wires and connectors to ignition coils
  • – Resolving short circuit problems
  • – Restoring and checking the ignition system relay.
  • – Reprogramming and replacing the PCM

 

What is the importance of the P0350 Fault Code

The vehicle will start if the P0350 fault code has been set. However, the vehicle could stall, misfire or slow down during acceleration. The vehicle could stop and not start, leaving you on the sidelines. It can also cause dangerous driving conditions. It is important to fix the problem as soon possible.

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