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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface, and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shocks.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, gap tool.
• Remove the ignition coil cover.
• Disconnect the electrical connector from the ignition coil and remove the coil.
• Remove the spark plug from cylinder 2 using a socket.
• Inspect the spark plug for wear, carbon buildup, or damage. Replace if necessary, ensuring it is gapped correctly to manufacturer specifications.
• Reinstall the spark plug and ignition coil, tightening to the specified torque (typically around 13 lb-ft).

3. Test and Replace Ignition Coil (if necessary)

• If the ignition coil is suspected to be faulty, replace it by:
  • Disconnecting the electrical connector from the coil.
  • Removing the coil from the spark plug well.
  • Installing the new ignition coil, reconnecting the electrical connector.

4. Inspect and Replace Fuel Injector (if necessary)

• If the fuel injector is not functioning properly, replace it by:
  • Disconnecting the fuel line and electrical connector from the injector.
  • Removing the injector from the fuel rail.
  • Installing the new injector, ensuring O-rings are lubricated.
  • Reconnecting the fuel line and electrical connector.

5. Final Assembly and Reconnect Battery

• Reinstall any components removed, such as the ignition coil cover.
• Reconnect the negative battery terminal.
• Start the engine and let it idle to check for any irregularities.