FAULTBASE
NEWSASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Honda/Accord/9th Generation (2013-2017)/how to fix P0302 code in Honda Accord Eleventh Generation (2023-present)

how to fix P0302 code in Honda Accord Eleventh Generation (2023-present)

Honda Accord 9th Generation (2013-2017)

Severity: highDifficulty: mediumError Code: P03022-4 hours
3 min read
593 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0302 cylinder 2 misfire in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0302
Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical components.
  • ⚠Allow the engine to cool before handling components to prevent burns.

Symptoms

  • •Check engine light illuminated
  • •Rough idling or engine shaking
  • •Loss of power during acceleration
  • •Increased fuel consumption
  • •Engine stalling
  • •Poor overall engine performance

Diagnostic Steps

  1. 1Scan the vehicle's diagnostic system using an OBD-II scanner to confirm the P0302 code.
  2. 2Inspect the ignition coil and spark plug for cylinder 2 for any visible damage or wear.
  3. 3Check the fuel injector operation for cylinder 2 by listening for clicking sounds or using a noid light.
  4. 4Perform a compression test on cylinder 2 to assess the engine's internal condition.
  5. 5Inspect for vacuum leaks around the intake manifold and related hoses.
  6. 6Review the engine's fuel pressure to ensure it meets specifications.

Solution

Solution

1. Preparation

  • Gather tools and parts.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Allow the engine to cool down.

2. Inspect and Replace Spark Plug

  • Tools Required: Socket set, torque wrench, spark plug socket.
  • Remove the engine cover if necessary.
  • Disconnect the ignition coil connector for cylinder 2.
  • Remove the ignition coil by unbolting it and pulling it out.
  • Remove the spark plug using the spark plug socket.
  • Inspect the spark plug for wear, carbon buildup, or damage.
  • Replace the spark plug with a new one, ensuring it is gapped correctly.
  • Reinstall the ignition coil and reconnect the connector.

3. Check and Replace Fuel Injector

  • Tools Required: Fuel injector removal tool, socket set.
  • Disconnect the fuel injector connector for cylinder 2.
  • Remove the fuel rail to access the injector (follow manufacturer guidelines for fuel rail removal).
  • Remove the fuel injector by pulling it out of the rail.
  • Inspect the injector for clogs or leaks.
  • Replace with a new fuel injector if necessary.
  • Reassemble the fuel rail and reconnect the fuel injector connector.

4. Inspect and Replace Ignition Coil

  • Inspect the ignition coil for signs of damage or wear.
  • Tools Required: Socket set.
  • If defective, remove the ignition coil and replace it with a new one.
  • Reconnect the ignition coil connector.

5. Reassemble and Test

  • Reinstall any components or covers that were removed during the process.
  • Reconnect the negative battery terminal.
  • Start the engine and allow it to idle to check for any remaining issues.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Socket set
  • Torque wrench
  • Spark plug socket
  • Fuel injector removal tool

Parts Required

  • Spark plug (for cylinder 2)
  • Fuel injector (if defective)
  • Ignition coil (if defective)

Additional Information

Error CodeP0302
Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

5 items

Parts

3 items

Related Faults

Discover similar issues

  1. my Honda Accord feels like it's slipping when I accelerate

    Learn how to diagnose and fix transmission slipping in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Transmission
    Symptoms
    • •Slipping or loss of power during acceleration
    • •Engine RPMs increase without corresponding vehicle speed increase
    • +{count} more
  2. how to fix Honda Accord 8th Generation (2008-2012) that won't start and has no power?

    Learn how to diagnose and fix the no-start issue in Honda Accord 8th Generation (2008-2012) with no power symptoms. Step-by-step guide included.

    Component:Electrical
    Symptoms
    • •No dashboard lights illuminated when turning the key
    • •No engine cranking sound
    • +{count} more
  3. my Honda Accord sunroof won’t close, how can I fix it?

    Learn how to diagnose and fix a Honda Accord sunroof that won't close. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Component:Electrical
    Symptoms
    • •Sunroof is stuck in an open position
    • •Sunroof makes a grinding or clicking noise when attempting to close
    • +{count} more
  4. my Honda Accord shakes when I accelerate what's wrong

    Learn how to diagnose and fix shaking during acceleration in Honda Accord. Step-by-step guide with symptoms, diagnostic steps, and repair instructions...

    Component:Suspension
    Symptoms
    • •Vehicle shakes or vibrates when accelerating
    • •Possible loss of power during acceleration
    • +{count} more
  5. my Honda Accord transmission makes a grinding noise when shifting into gear

    Learn how to diagnose and fix grinding noise in Honda Accord transmission. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Transmission
    Symptoms
    • •Grinding noise when shifting into gear
    • •Difficulty engaging gears
    • +{count} more
  6. my Honda Accord battery keeps dying, even after a jump, what should I do?

    Learn how to diagnose and fix battery issues in Honda Accord. Step-by-step guide with symptoms, diagnostic steps, tools, and repair instructions.

    Component:Electrical
    Symptoms
    • •Battery warning light illuminated on the dashboard
    • •Difficulty starting the engine
    • +{count} more

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation