Engine-CodesHonda – P0303 2017 Honda CR-V

P0303 2017 Honda CR-V Code - No. 3 Cylinder Misfire Detected

Quick Answer

The P0303 code on a 2017 Honda CR-V indicates that a misfire has been detected in the No. Common causes include Faulty spark plug in the No, 3 cylinder, Failing ignition coil. 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
P0303 2017 Honda CR-V indicates No. 3 Cylinder Misfire Detected.
Common causes
Common causes include Faulty spark plug in the No, 3 cylinder, Failing ignition coil.
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 17, 2024
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Code P0303 2017 Honda CR-V Description

The P0303 code on a 2017 Honda CR-V indicates that a misfire has been detected in the No. 3 cylinder of the engine. This means that the fuel-air mixture in that particular cylinder is not igniting properly, leading to a loss of power, rough idling, and potential damage to the catalytic converter over time. A misfire can be caused by a variety of issues, including problems with the ignition system, fuel system, or engine mechanical components.

OBDII Code P0303 2017 Honda CR-V - No. 3 Cylinder Misfire Detected
P0303 2017 Honda CR-V Code - No. 3 Cylinder Misfire Detected

Common Causes of P0303 2017 Honda CR-V

  1. Faulty spark plug in the No. 3 cylinder
  2. Failing ignition coil
  3. Clogged or malfunctioning fuel injector
  4. Vacuum leak in the intake manifold
  5. Low compression in the No. 3 cylinder

Symptoms of P0303 2017 Honda CR-V

  1. Rough idling
  2. Loss of power
  3. Hesitation or jerking during acceleration
  4. Engine stalling
  5. Increased fuel consumption

How to Fix P0303 2017 Honda CR-V

  1. Diagnose the specific cause of the misfire by performing a thorough inspection of the ignition system, fuel system, and engine components.
  2. Replace the spark plugs in all cylinders, including the No. 3 cylinder.
  3. Test and potentially replace the ignition coil for the No. 3 cylinder.
  4. Clean or replace the fuel injector for the No. 3 cylinder.
  5. Check for vacuum leaks and repair as necessary.

Cost to Fix P0303 2017 Honda CR-V

The cost of repairing a No. 3 cylinder misfire on a 2017 Honda CR-V can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, you can expect to pay between $150 and $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's best to get a detailed estimate from a trusted mechanic before proceeding with the repairs.

Tech Notes for P0303 2017 Honda CR-V

The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #3. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes".

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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 P0303 2017 Honda CR-V Code

1. What does the OBDII code P0303 mean on a 2017 Honda CR-V?

P0303 indicates a misfire has been detected in cylinder No. 3.

2. What are the symptoms of a P0303 code on a 2017 Honda CR-V?

Common symptoms include rough idling, poor acceleration, decreased fuel efficiency, and an illuminated Check Engine Light.

3. What causes the P0303 code in a 2017 Honda CR-V?

Potential causes include a faulty spark plug, ignition coil failure, a clogged fuel injector, low cylinder compression, or a vacuum leak near cylinder No. 3.

4. Can I drive my 2017 Honda CR-V with a P0303 code?

Driving with a P0303 code for an extended period can damage the engine or catalytic converter, so it is best to address the issue promptly.

5. How do I fix the P0303 code on my 2017 Honda CR-V?

Start by inspecting and replacing the spark plug and ignition coil for cylinder No. 3. If the issue persists, check the fuel injector and test for compression or vacuum leaks.

6. How can I diagnose the P0303 code on a 2017 Honda CR-V?

Use an OBDII scanner to verify the code, then inspect the spark plug, ignition coil, fuel injector, and cylinder compression for any issues.

7. How much does it cost to fix the P0303 code on a 2017 Honda CR-V?

Costs vary but typically range from $50-$150 for spark plug or ignition coil replacement, with higher costs if fuel injectors or internal engine repairs are needed.

8. Can a dirty air filter cause a P0303 code in a 2017 Honda CR-V?

A severely clogged air filter can contribute to engine misfires, although it is less likely to directly trigger a P0303 code.

9. Will clearing the P0303 code fix the problem on my 2017 Honda CR-V?

Clearing the code will reset the Check Engine Light temporarily, but the underlying issue must be resolved to prevent the code from returning.

10. Can bad fuel cause a P0303 code on a 2017 Honda CR-V?

Yes, contaminated or low-octane fuel can cause misfires, including in cylinder No. 3, and trigger a P0303 code.

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