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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal for safety.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil cover to access the spark plug.
• Use the spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear, carbon buildup, or damage.
• If defective, replace with a new spark plug to the manufacturer's specifications (typically, torque to 13 ft-lbs).

3. Inspect and Replace Ignition Coil

• Tools Required: Socket set, multimeter (for testing).
• Disconnect the electrical connector from the ignition coil of cylinder 2.
• Remove the ignition coil using the socket set.
• Use a multimeter to test the ignition coil resistance. If outside specifications, replace the ignition coil.
• Install the new ignition coil and reconnect the connector.

4. Check Fuel Injector

• Tools Required: Fuel injector tester.
• Disconnect the fuel injector connector from cylinder 2.
• Use the fuel injector tester to check for proper operation.
• If the injector is faulty, replace it with a new one, ensuring all connections are secure.

5. Perform Compression Test

• Tools Required: Compression gauge.
• Remove the spark plug from cylinder 2.
• Insert the compression gauge into the spark plug hole.
• Crank the engine and take the reading. Compare it with the manufacturer's specifications.
• If compression is low, further engine inspection may be necessary.