Engine-CodesInfiniti – P0350 Infiniti

P0350 Infiniti Code - Ignition Coil Primary/Secondary Circuit Malfunction

Quick Answer

The OBD-II trouble code P0350 for Infiniti vehicles indicates a malfunction in the ignition coil's primary or secondary circuit. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Failed spark plug. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0350 Infiniti indicates Ignition Coil Primary/Secondary Circuit Malfunction.
Common causes
Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Failed spark plug.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0350 Infiniti Description

The OBD-II trouble code P0350 for Infiniti vehicles indicates a malfunction in the ignition coil's primary or secondary circuit. Ignition coils play a crucial role in the combustion process by transforming the low voltage from the battery into the high voltage needed to ignite the air-fuel mixture in the engine cylinders. When the ignition coil primary/secondary circuit malfunctions, it can lead to misfires, rough idling, loss of power, and even engine stalling.

OBDII Code P0350 Infiniti - Ignition Coil Primary/Secondary Circuit Malfunction
P0350 Infiniti Code - Ignition Coil Primary/Secondary Circuit Malfunction

Common Causes of P0350 Infiniti

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the ignition coil circuit
  3. Failed spark plug
  4. Issues with the engine control module (ECM)
  5. Poor electrical connections

Symptoms of P0350 Infiniti

  1. Engine misfires
  2. Rough idling or vibrations
  3. Decreased fuel efficiency
  4. Engine stalling or hesitation during acceleration
  5. Illumination of the Check Engine Light

How to Fix P0350 Infiniti

  1. Use a diagnostic scanner to retrieve and record the trouble codes, including P0350.
  2. Inspect the ignition coil, wiring, and connectors for any visible damage or corrosion.
  3. Test the ignition coil's primary and secondary circuits using a multimeter to identify any faults.
  4. Replace any faulty ignition coils, damaged wiring, or connectors as needed.
  5. Clear the trouble codes, reset the ECM, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0350 Infiniti

The typical repair costs for addressing the P0350 code in an Infiniti vehicle can vary depending on the specific cause of the issue and the parts required for the repair. On average, replacing an ignition coil can cost between $150 to $300 per coil, including parts and labor. Additional costs may be incurred for diagnostic testing, wiring repairs, or ECM reprogramming. It's essential to consult with a reputable auto repair shop for an accurate estimate based on your vehicle's make and model, as well as local labor rates.

When is the Code Detected?

The test fails when the Engine Control Module (ECM) does not receive a valid pulse signal from the ignition coil.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0350 Infiniti Code

What does the OBDII code P0350 mean for an Infiniti?

P0350 indicates a malfunction in the ignition coil primary or secondary circuit, which can disrupt engine ignition performance.

What are the common symptoms of code P0350 on an Infiniti?

Symptoms may include engine misfires, rough idling, reduced fuel efficiency, difficulty starting, and the Check Engine Light turning on.

What causes the P0350 code to appear in an Infiniti?

Possible causes include a faulty ignition coil, damaged wiring or connectors, a malfunctioning Engine Control Unit (ECU), or issues with the spark plugs.

How do I diagnose the P0350 code on my Infiniti?

Diagnosis involves checking the ignition coil for damage, inspecting wiring and connectors for corrosion or breaks, testing the ECU, and verifying spark plug condition.

Can I drive my Infiniti with a P0350 code?

It is not recommended to drive for long periods with this code present, as it can cause engine misfires, damage other components, and reduce performance.

How do you fix a P0350 code on an Infiniti?

Repairs may include replacing the faulty ignition coil, repairing damaged wiring or connectors, replacing spark plugs, or reprogramming or replacing the ECU if needed.

What tools are required to troubleshoot P0350 on an Infiniti?

You may need an OBDII scanner, multimeter, and basic hand tools like screwdrivers and wrenches.

How much does it cost to repair a P0350 code on an Infiniti?

Repair costs vary based on the specific problem but can range from $50 for spark plugs to $300 or more for ignition coil replacement.

Can a dirty or malfunctioning spark plug cause the P0350 code?

Yes, a worn or fouled spark plug can contribute to ignition coil issues and trigger the P0350 code.

Should the ignition coil be replaced if I get a P0350 code on my Infiniti?

If the ignition coil is determined to be faulty during diagnosis, it should be replaced to resolve the issue.

Discuss the causes and fixes for P0350 Infiniti OBDII Code

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