what does code P0302 mean for my Honda Civic 11th Generation (2022-Present)

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is cool.
• Gather necessary tools and parts.
• Disconnect the battery to avoid electrical shock.

2. Inspect and Replace Spark Plug

1. Remove the engine cover (if applicable).
2. Locate the spark plug for Cylinder 2.
3. Use a spark plug socket and ratchet to remove the spark plug.
4. Inspect the spark plug for signs of wear or fouling.
5. If necessary, replace it with a new spark plug, ensuring the proper gap is set (check manufacturer specifications).
6. Reinstall the spark plug and tighten it to the specified torque (typically around 13 lb-ft).

3. Test and Replace Ignition Coil

1. Disconnect the electrical connector from the ignition coil for Cylinder 2.
2. Remove the ignition coil using a socket and ratchet.
3. Test the ignition coil with a multimeter for proper resistance (refer to manufacturer specifications).
4. Replace the ignition coil if it does not meet specifications.
5. Reinstall the ignition coil and reconnect the electrical connector.

4. Inspect Fuel Injector

1. Disconnect the electrical connector from the fuel injector for Cylinder 2.
2. Remove the fuel rail (if necessary) to access the injector.
3. Inspect the injector for clogs or damage.
4. If needed, replace the fuel injector.
5. Reinstall the fuel rail and reconnect the electrical connector.

5. Perform Compression Test

1. Remove the spark plug for Cylinder 2 again if it was replaced.
2. Insert a compression gauge into the spark plug hole.
3. Crank the engine several times to obtain a reading.
4. Compare the reading to manufacturer specifications; replace the cylinder head gasket if compression is low.