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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery (negative terminal) to prevent electrical shock.
• Allow the engine to cool before starting the repair.

2. Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from cylinder 2.
• Using the spark plug socket, remove the old spark plug.
• Inspect the spark plug hole for debris and clean if necessary.
• Install the new spark plug, ensuring it is torqued to the manufacturer’s specifications (typically around 13 lb-ft).

3. Replace Ignition Coil (if necessary)

• If the ignition coil appears damaged or malfunctioning, remove it from cylinder 2.
• Disconnect the electrical connector and remove the mounting bolts using the appropriate socket.
• Install the new ignition coil, securing it with bolts and reconnecting the electrical connector.

4. Test Fuel Injector

• If the spark plug and ignition coil are functional, check the fuel injector for cylinder 2.
• Disconnect the electrical connector and remove the fuel injector.
• Test the injector using a multimeter to ensure it is receiving power.
• If faulty, replace with a new fuel injector.

5. Reassemble Components

• Reinstall the ignition coil and any other components removed during the process.
• Reconnect the negative battery terminal.