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 prevent electrical shorts.
• Allow the engine to cool down before starting work.

2. Replace Ignition Coil (if necessary)

1. Remove Engine Cover: Use a socket set to remove any bolts securing the engine cover and lift it off.
2. Disconnect Wiring Harness: Carefully disconnect the wiring harness from the ignition coil for cylinder 2.
3. Remove Ignition Coil: Unbolt the ignition coil using the appropriate socket and lift it out of the cylinder head.
4. Install New Ignition Coil: Place the new ignition coil into the cylinder head and bolt it down to the specified torque (typically around 8-10 ft-lbs).
5. Reconnect Wiring Harness: Reconnect the wiring harness to the new ignition coil.

3. Replace Spark Plug (if necessary)

1. Remove Spark Plug: Using a spark plug socket, carefully unscrew and remove the spark plug from cylinder 2.
2. Inspect and Compare: Check the old spark plug for signs of wear or fouling. Compare it with the new spark plug to ensure proper gap and specifications.
3. Install New Spark Plug: Install the new spark plug by hand to avoid cross-threading, then tighten it to the manufacturer's specified torque (typically around 13-16 ft-lbs).
4. Reconnect Ignition Coil: If previously removed, reconnect the ignition coil on top of the new spark plug.

4. Clean or Replace Fuel Injector (if necessary)

1. Remove Fuel Injector: Detach the fuel rail (if required) to access the fuel injector for cylinder 2. Unscrew any retaining clips and gently pull out the fuel injector.
2. Clean or Replace Injector: If cleaning, use a fuel injector cleaning solution. If replacing, install a new injector by reversing the removal steps.
3. Reattach Fuel Rail: Ensure the fuel rail is securely fastened and all connections are tight.

5. Reassemble and Test

1. Reattach Engine Cover: Replace the engine cover and secure it with the bolts.
2. Reconnect Battery: Reconnect the negative battery terminal.
3. Start Engine: Start the engine and allow it to reach operating temperature.