P0350 Nissan Code – Ignition Coil Primary/Secondary Circuit Malfunction


When you encounter the P0350 code on your Nissan, it signals an issue with either the primary or secondary circuit of the ignition coil. Common symptoms include engine misfires, rough idling, and a noticeable drop in fuel efficiency. Causes range from faulty ignition coils to poor electrical connections or damaged wiring. To diagnose, you'll need tools such as an OBD-II scanner and a multimeter. Check the wiring and coil connectivity for visible damage or wear, and verify the coil's resistance against standard specifications. Repair costs can vary, typically requiring $120 to $250 for coil replacement. Addressing this promptly can avoid more serious engine problems, ensuring safer driving conditions for you.

P0350 Nissan Code Meaning

The P0350 code on a Nissan indicates a problem with the ignition coil circuit.

Causes include faulty coils, damaged wiring, or poor connections.

Prompt inspection and repair are essential to prevent engine misfires, reduced efficiency, and increased emissions.

Consult a mechanic for accurate diagnosis and repairs.

Error Code P0350 Symptoms

When your Nissan shows a P0350 code, you might notice some problems.

These are signs that the ignition coil isn't working right. Recognizing these signs can help you spot the issue early.

Here's what you might see:

  1. Engine Misfires: The engine might stutter or lose power briefly. This happens because the ignition coil isn't helping the engine burn fuel properly.
  2. Rough Idling: Your car may vibrate or sound rough when you're not moving. This is often due to the cylinders not burning fuel completely.
  3. Reduced Fuel Economy: The engine uses more fuel because it's not running efficiently with a faulty ignition coil.
  4. Check Engine Light: This light can mean many things, but with these symptoms, it often points to a problem with the ignition system.

If you notice any of these, it's a good idea to get your car checked to avoid more issues.

Causes of Nissan P0350 Fault Code

Your Nissan might show a P0350 fault code for several reasons. Here's what could be causing it:

  1. Bad Ignition Coil(s)
    • The ignition coil charges up the spark plugs. If one coil isn't working right, it affects how the engine runs, which could lead to the P0350 code.
  2. Broken Coil Wiring
    • Wires going to the ignition coils might be worn out or corroded. This can mess up the signals and cause this code. Check for any visible damage or wear.
  3. Faulty Coil Connectors
    • Connectors that link the ignition coils to the engine might become loose or rusty. If they don't connect well, the signals won't go through properly, which can trigger the P0350 code.
  4. Problems with the ECM
    • The Engine Control Module (ECM) handles many engine tasks, including the ignition system. If the ECM isn't working right, it might think there's a problem with the ignition circuit and show the P0350 code by mistake.

Make sure to test each part to find out what's wrong.

Tools Needed to Diagnose

To figure out what's causing the P0350 error in your Nissan, you'll need some tools. These will help you check the different parts and avoid making mistakes.

Here's what you'll need:

  1. OBD-II Scanner: This gadget plugs into your Nissan. It reads error codes and shows live data. Use it to see if the P0350 code is active and to check if the problem is fixed later.
  2. Digital Multimeter: This tool checks the electrical resistance and voltage in the ignition coil and wires. Get the right readings to see if everything is working properly.
  3. Ignition System Tester: With this, you can test if the ignition coil works well by simulating engine conditions. It tells you if the coil can make a good spark.
  4. Inspection Light: This helps you see in small spaces to spot any wear, rust, or damage on wires and connectors.

Having these tools means you can find the problem without guessing or changing parts you don't need to.

How to Fix P0350 Nissan Error Code – Step by Step

Step 1:

Start by inspecting all the ignition coils on your Nissan. Look for any signs of wear, damage, or corrosion. Replace any coil that appears faulty to ensure proper functioning.

Step 2:

Check the wiring harness for the ignition coils. Ensure all connections are secure and free of corrosion. If you find any damaged wires, repair or replace them as needed.

Step 3:

After addressing the wiring issues, use an OBD-II scanner to clear the error code from your vehicle's computer. Start the engine and check if the P0350 code returns.

Step 4:

If the problem persists, test each ignition coil's resistance using a multimeter. Compare your findings with the manufacturer's specifications. Replace any coil that doesn't meet the required specifications.

Step 5:

If you've replaced coils and wiring and the code still reappears, the issue might be with the engine control module (ECM). This is a more complex fix and may require professional assistance to resolve the malfunction.

Common Diagnosis Mistakes

Don't rush to conclusions about your ignition coils when you see the P0350 Nissan code. Jumping to replace parts without checking them can cost you money and leave your car problems unsolved.

Here are four mistakes people often make:

  1. Check Wiring and Connectors: Look at the wires and connectors going to the ignition coils. They might be damaged or corroded, which can act like a bad coil.
  2. Think About Other Causes: The P0350 code might come from issues that have nothing to do with the coils, like problems with the ECU or a bad crankshaft sensor. Check these before deciding the coils are the problem.
  3. Scan All Codes: Start by reading all stored trouble codes. This helps find the real issue instead of just what it looks like.
  4. Inspect Coil Packs Closely: Look over the coil packs well. Check for cracks, wear, or oil that might be causing problems.

P0350 Nissan Repair Cost

When you see the P0350 code on your Nissan, it's helpful to know what might be wrong so you don't spend more money than you need to. The cost can be different depending on what's causing the problem.

It might be a simple fix like changing an ignition coil, or it could be something more like an issue with the wires or the car's computer, called the Engine Control Unit (ECU).

If it's just the ignition coil, the part can cost between $70 and $150. If you have a mechanic change it for you, you might pay another $50 to $100 for the work.

So, you could spend around $120 to $250 for one coil replacement.

But if there's more wrong, like issues with the ECU or wiring, the cost can get high fast. Fixing or replacing an ECU can be over $1,000.

If the problem is with the electrical system, it might take a lot of time to figure out, which means more money for the mechanic's time.

Related Error Codes on Nissan

When dealing with the P0350 error code on your Nissan, you might find other error codes showing up. These codes can reveal more problems affecting your car's performance or safety.

Here's a list of some error codes that often appear with P0350:

Code Description System Impact
P0300 Random/Multiple Cylinder Misfire Misfires in several cylinders, affecting engine stability.
P0301 Cylinder 1 Misfire Detected Misfire in cylinder 1, leading to poor engine performance.
P0351 Ignition Coil A Primary/Secondary Fault Problem with ignition coil A, causing engine misfires or stopping.
P0352 Ignition Coil B Primary/Secondary Fault Problem with ignition coil B, like P0351 but affects another coil.
P0420 Catalyst System Efficiency Below Threshold Catalytic converter not working well, might fail emissions tests.

If you see these codes, take care of them soon to prevent more problems. Each code points to a specific issue that can worsen if not fixed.

Can I drive safely with P0350 Nissan?

Driving with a P0350 error code on your Nissan isn't safe.

It means there's a problem with the ignition coil, which can make the car run poorly.

This can cause more damage and be dangerous.

Get it fixed by a mechanic soon.

People Also Ask

What Is the Warranty Coverage for Ignition Coil Replacement on a Nissan?

Nissan usually covers the ignition coil under its factory warranty for 3 years or 36,000 miles, whichever comes first. You should look at your car's warranty papers to see exactly what is covered for your vehicle.

How Long Does an Ignition Coil Typically Last on a Nissan?

An ignition coil on a Nissan usually lasts up to 100,000 miles. But it's a good idea to check your car's manual because different models might have different advice. Always follow what your car's guide says to keep it running well.

Are Aftermarket Ignition Coils Reliable for Fixing the P0350 Code?

Aftermarket ignition coils can fix the P0350 code if you pick good ones. It's important to choose coils from trusted brands. Cheaper ones might not work well and could cause more problems. So, make sure to buy a reliable brand for the best results.

Does Weather Affect the Nissan Ignition Coil's Performance?

Yes, weather can affect how well your Nissan's ignition coil works. Very hot or cold temperatures and high humidity might cause problems with the car's electrical parts. This can make any existing issues with the ignition system even worse.

Can a P0350 Code Trigger Other Issues in a Nissan Vehicle?

Yes, a P0350 code in your Nissan can cause more problems. It might make the engine misfire or idle roughly. This can lead to more issues with how your car runs, affecting both electrical and mechanical parts.


Leave a Reply

Your email address will not be published. Required fields are marked *