AutoCodes – Honda – P0351 2008 Honda Accord

P0351 2008 Honda Accord Code - Ignition Coil 1 Circuit Malfunction

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 2008 Honda Accord indicates Ignition Coil 1 Circuit Malfunction.
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 9,190

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 2008 Honda Accord 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 2008 Honda Accord - Ignition Coil 1 Circuit Malfunction - AutoCodes.com — P0351 2008 Honda Accord Code - Ignition Coil 1 Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0351 2008 Honda Accord?

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 2008 Honda Accord?

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 2008 Honda Accord 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.

Need more information about the P0351 2008 Honda Accord code?

Need more information on how to fix the P0351 2008 Honda Accord code? Get Access to Factory Service Manuals

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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 2008 Honda Accord Code

1. What does OBDII code P0351 on a 2008 Honda Accord mean?

The code P0351 indicates an ignition coil 1 circuit malfunction on a 2008 Honda Accord.

2. What are the common symptoms of an ignition coil 1 circuit malfunction (P0351) in a 2008 Honda Accord?

Common symptoms include engine misfires, rough idling, loss of power, and difficulty starting the vehicle.

3. What are the possible causes of the ignition coil 1 circuit malfunction code P0351 on a 2008 Honda Accord?

Possible causes include a faulty ignition coil, wiring issues in the ignition coil circuit, a bad spark plug, or a problem with the engine control module (ECM).

4. How can I diagnose the ignition coil 1 circuit malfunction on my 2008 Honda Accord?

Diagnosing P0351 involves checking the ignition coil, spark plug, and wiring for any signs of damage or wear. Using a multimeter to test the components can help pinpoint the issue.

5. Can I still drive my 2008 Honda Accord with the P0351 code?

It's not recommended to drive your vehicle with the P0351 code present, as it can lead to further damage to the engine and catalytic converter.

6. How do I repair the ignition coil 1 circuit malfunction on my 2008 Honda Accord?

Repairing P0351 may involve replacing the faulty ignition coil, spark plug, or repairing any damaged wiring in the circuit.

7. How much does it cost to fix the ignition coil 1 circuit malfunction on a 2008 Honda Accord?

The cost of fixing P0351 can vary depending on the extent of the damage and the parts needed. On average, the repair can range from $100 to $300.

8. Can a DIY enthusiast fix the P0351 code on a 2008 Honda Accord?

If you have the necessary tools and experience working on automotive electrical systems, you may be able to fix the issue yourself. However, it's recommended to consult a professional if you're unsure.

9. Will resetting the OBDII code P0351 on my 2008 Honda Accord make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

10. Is it necessary to replace all ignition coils if one is malfunctioning on a 2008 Honda Accord?

While it's not always necessary to replace all ignition coils if one is malfunctioning, it's recommended to inspect and potentially replace all coils if they are of similar age and mileage to prevent future issues.