how to fix P0302 misfire code on Honda Accord 8th Generation (2008-2012)

Solution

1. Preparation

• Gather tools and necessary parts.
• Disconnect the negative battery terminal to avoid electrical shorts.
• Ensure the engine is cool before starting work.

2. Replace Spark Plug

1. Remove the engine cover (if applicable) using a socket set.
2. Use a spark plug socket to remove the spark plug from cylinder 2.
3. Inspect the old spark plug for signs of wear or fouling; ensure the gap is correct according to manufacturer specifications (typically around 0.043 inches).
4. Install a new spark plug, ensuring proper torque (typically 13 lb-ft).
5. Reattach the ignition coil to cylinder 2.

3. Replace Ignition Coil (if necessary)

1. If the ignition coil is faulty, remove the coil from cylinder 2 after disconnecting the electrical connector.
2. Install a new ignition coil and reconnect the electrical connector.
3. Ensure it is seated properly on the spark plug.

4. Clean or Replace Fuel Injector (if necessary)

1. Remove the fuel rail to access the injector for cylinder 2.
2. Inspect the injector for clogs; clean using fuel injector cleaner or replace it if necessary.
3. Reassemble the fuel rail and ensure all connections are tight.

5. Final Assembly

• Reattach any components or covers removed during the repair.
• Reconnect the negative battery terminal.