how to fix P0302 code in Honda Accord 10th Generation (2018-2022)?

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent electrical shocks.
• Allow the engine to cool if it has been running.

2. Replace Spark Plug

1. Remove the engine cover (if applicable) to access the ignition coils.
2. Disconnect the ignition coil connector for cylinder 2.
3. Remove the ignition coil from cylinder 2 using a socket set.
4. Remove the old spark plug from cylinder 2 using a spark plug socket.
5. Install the new spark plug and torque it to the manufacturer’s specifications (typically around 13-15 lb-ft).
6. Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if necessary)

1. If the ignition coil is found defective during inspection, remove it as described above.
2. Install a new ignition coil onto the spark plug and secure it properly.
3. Reconnect the ignition coil connector.

4. Test Fuel Injector (if necessary)

1. If the injector is suspected to be faulty, disconnect the fuel injector connector for cylinder 2.
2. Use a noid light to ensure the injector is receiving a signal; if not, further investigation is needed in the wiring or ECU.
3. If the injector is faulty, remove it and install a new one, ensuring proper sealing and connection.

5. Verify Compression (if necessary)

1. If low compression is found, further disassembly may be required to inspect piston rings or valves.
2. If compression is acceptable, reassemble the components.

Tools Required:

• OBD-II scanner
• Socket set
• Spark plug socket
• Torque wrench
• Spark tester
• Noid light
• Compression tester

Parts Required:

• Spark plug for cylinder 2
• Ignition coil (if needed)
• Fuel injector (if needed)

Estimated Repair Time: 1-3 hours

Safety Warnings:

• Disconnect the battery before working on electrical systems.
• Allow engine to cool before opening any components to prevent burns.