how to fix P0302 code in Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool completely before starting work.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil from cylinder 2 by unscrewing any retaining bolts and disconnecting the electrical connector.
• Remove the spark plug using a spark plug socket and ratchet.
• Inspect the old spark plug for wear or fouling. Replace it with a new spark plug if necessary, ensuring it meets the manufacturer's specifications (usually a gap of 0.043 inches).
• Reinstall the spark plug and torque it to the specified value (typically around 13 lb-ft).

3. Inspect and Replace Ignition Coil

• If the spark plug is in good condition, test the ignition coil. If faulty, replace it:
  • Remove the ignition coil from cylinder 2.
  • Install the new ignition coil and reconnect the electrical connector.

4. Check and Clean Fuel Injector

• If the ignition system is functioning correctly, check the fuel injector:
  • Remove the fuel injector from cylinder 2 after relieving fuel pressure.
  • Clean the injector using a fuel injector cleaning kit or replace it if it is clogged or malfunctioning.
  • Reinstall the fuel injector ensuring proper sealing.

5. Reassemble and Test

• Reattach the ignition coil and any other components removed during the repair.
• Reconnect the negative battery terminal.
• Start the engine and allow it to idle, monitoring for any check engine light re-illumination.