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

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a flat surface and ensure the engine is cool.
• Disconnect the battery to prevent electrical shocks.

2. Inspect and Replace Spark Plug

• Remove the engine cover if applicable using a socket set.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear or damage. Replace if necessary.
• Torque the new spark plug to the manufacturer's specification (typically around 13-15 ft-lbs).
• Reinstall the engine cover.

3. Inspect and Replace Ignition Coil

• Remove the ignition coil from cylinder 2 by disconnecting the electrical connector and unscrewing the mounting bolts.
• Inspect the ignition coil for any cracks or signs of failure. Replace if defective.
• Install the new ignition coil and torque to the specified value (usually around 7-9 ft-lbs).

4. Inspect and Clean Fuel Injector

• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel rail if necessary to access the injector.
• Inspect the fuel injector for clogs and clean if needed, or replace if faulty.
• Reinstall the fuel rail and reconnect the injector connector.

5. Perform a Compression Test

• Remove the spark plug from cylinder 2 and install a compression gauge.
• Crank the engine and record the compression reading.
• Compare the reading to the manufacturer's specifications; if it is low, further investigation into engine internals may be required.