AutoCodes – KIA – P0351 KIA

P0351 KIA Code - Ignition Coil 1 Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 circuit poor electrical connection. 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: P0351 KIA indicates Ignition Coil 1 Primary/Secondary Circuit.
Common causes: Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 circuit poor electrical connection.
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.

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Code Popularity 5,178

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0351 KIA Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

OBDII Code P0351 KIA - Ignition Coil 1 Primary/Secondary Circuit - AutoCodes.com — P0351 KIA Code - Ignition Coil 1 Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0351 KIA?

Faulty Ignition Coil 1
Ignition Coil 1 harness is open or shorted
Ignition Coil 1 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0351 KIA?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0351 KIA code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 P0351 KIA Code

1. What are common symptoms of OBDII code P0351 in a KIA related to the Ignition Coil 1 Primary/Secondary Circuit?

Common symptoms include engine misfires, rough idling, loss of power, and in some cases, the Check Engine Light may illuminate.

2. What are the typical causes of OBDII code P0351 in a KIA?

The most common causes of code P0351 are a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a defective Engine Control Module (ECM).

3. How can I diagnose the issue causing OBDII code P0351 in my KIA?

You can diagnose the problem by checking the ignition coil for proper function, inspecting the wiring and connectors for damage, and using a scan tool to monitor the ignition system components.

4. Can a bad spark plug lead to OBDII code P0351 in a KIA?

Yes, a faulty spark plug can cause stress on the ignition coil and potentially trigger code P0351. It's recommended to inspect and replace spark plugs if needed when diagnosing this code.

5. Is it safe to continue driving my KIA with OBDII code P0351 present?

It is not recommended to drive your vehicle with code P0351 as it can lead to further damage to the ignition system and potentially cause more severe issues. It's best to address the problem promptly.

6. How can I repair OBDII code P0351 in my KIA at home?

Repairing code P0351 may involve replacing the faulty ignition coil, repairing damaged wiring or connectors, and clearing the code with a scan tool. It's recommended to have some experience with automotive repairs before attempting this at home.

7. Can weather conditions affect OBDII code P0351 in a KIA?

Extreme weather conditions, especially moisture, can impact the ignition system and potentially trigger code P0351. It's important to keep the ignition components dry and well-maintained.

8. Will resetting the Check Engine Light resolve OBDII code P0351 in a KIA?

Simply resetting the Check Engine Light without addressing the underlying issue will not fix code P0351. It's crucial to diagnose the problem, make necessary repairs, and clear the code properly.

9. How much does it typically cost to repair OBDII code P0351 in a KIA at a professional mechanic?

The cost of repairing code P0351 can vary depending on the exact cause of the issue, labor rates, and parts needed. On average, the repair may range from $100 to $300 at a professional mechanic.

10. Can OBDII code P0351 in a KIA affect fuel efficiency?

Yes, code P0351 can affect fuel efficiency due to engine misfires and inefficient combustion. Resolving the issue promptly can help improve fuel economy and overall performance.