my Honda Civic 10th Generation (2016-2021) has a persistent P0302 code what does it mean

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on the electrical components.

2. Replace Spark Plug

1. Remove the engine cover if applicable.
2. Disconnect the ignition coil connector for cylinder 2.
3. Unbolt and remove the ignition coil.
4. Use a spark plug socket to remove the old spark plug.
5. Install the new spark plug and torque to the manufacturer's specification (typically around 13-16 lb-ft).
6. Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if necessary)

1. If the ignition coil tested out of specifications, replace it as follows:
   • Remove the ignition coil as described above.
   • Install the new ignition coil and secure it with bolts.
   • Reconnect the ignition coil connector.

4. Check Fuel Injector (if necessary)

1. If the fuel injector is suspected to be faulty:
   • Remove the fuel rail to access the injector.
   • Disconnect the fuel injector connector.
   • Remove the fuel injector and install the new one.
   • Reassemble the fuel rail and reconnect the fuel injector connector.

5. Reset Engine Codes

• After completing repairs, use the OBD-II scanner to clear the P0302 code and any other diagnostic trouble codes.