Honda CR-V Sixth Generation (2023-present) P0301 code how to repair

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.

2. Inspect and Replace Spark Plug

1. Remove the engine cover (if applicable) using a socket set.
2. Disconnect the ignition coil connector for cylinder 1.
3. Unscrew the ignition coil using a socket wrench and remove it from the spark plug.
4. Use a spark plug socket to remove the faulty spark plug.
5. Inspect the spark plug for wear; replace it with a new one if necessary, ensuring it meets OEM specifications.
6. Reinstall the ignition coil and connect the harness.

3. Check and Replace Ignition Coil (if needed)

1. If the spark plug appears fine, test the ignition coil with a multimeter to check for proper resistance.
2. If the resistance is outside specifications, remove the ignition coil and replace it with a new one.
3. Reconnect the ignition coil connector.

4. Inspect and Clean Fuel Injector

1. Disconnect the fuel injector connector for cylinder 1.
2. Remove the fuel rail bolts and carefully pull the fuel rail away from the engine.
3. Remove the fuel injector from the rail and inspect for clogs or damages.
4. Clean the injector using appropriate cleaning solvent or replace it if necessary.
5. Reinstall the injector and fuel rail, ensuring all connections are secure.

5. Conduct Compression Test

1. Remove the spark plug from cylinder 1.
2. Insert the compression tester into the spark plug hole.
3. Crank the engine and record the compression reading, ensuring it meets the manufacturer's specifications.
4. If the compression is low, this may indicate internal engine issues requiring further investigation.