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

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to ensure safety.

2. Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench, ratchet, dielectric grease.
• Remove the engine cover if applicable.
• Locate the spark plug for cylinder 2 (refer to the vehicle manual for cylinder numbering).
• Use the spark plug socket to remove the old spark plug.
• Inspect the old spark plug for signs of wear or fouling.
• Apply a small amount of dielectric grease to the threads of the new spark plug.
• Install the new spark plug and torque it to the manufacturer’s specifications (typically around 13 lb-ft).

3. Inspect and Replace Ignition Coil

• Tools Required: Ratchet and socket set.
• Remove the ignition coil connector for cylinder 2.
• Unbolt and remove the ignition coil from its mounting.
• Inspect the coil for cracks or signs of wear.
• Install a new ignition coil if necessary and torque to specifications.
• Reconnect the ignition coil connector.

4. Check and Replace Fuel Injector (if necessary)

• Tools Required: Ratchet and socket set, fuel line disconnect tool.
• Disconnect the fuel line and electrical connector from the fuel injector for cylinder 2.
• Remove the fuel injector from its rail.
• Inspect for clogs or damage; replace if necessary.
• Install the new fuel injector and reconnect the fuel line and electrical connector.

5. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the engine and allow it to reach operating temperature.
• Monitor the engine for any misfires and check for any new codes with the OBD-II scanner.