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

Solution

1. Preparation

• Gather all required tools and parts.
• Disconnect the negative battery cable to ensure safety.
• Allow the engine to cool completely before starting any work.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from Cylinder 1 by unscrewing the bolts and disconnecting the electrical connector.
• Use the spark plug socket to remove the spark plug from Cylinder 1.
• Inspect the spark plug for wear, carbon build-up, or damage; replace if necessary.
• Install the new spark plug and torque it to the manufacturer's specification (typically around 13 ft-lbs).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Check and Replace Ignition Coil (if necessary)

• If the ignition coil appears damaged or malfunctioning, replace it.
• Tools Required: Socket set, torque wrench.
• Remove the ignition coil from Cylinder 1, as described in the previous step.
• Install the new ignition coil and secure it with bolts, torquing them to the specified value (usually around 8-10 ft-lbs).

4. Inspect and Clean Fuel Injector

• Tools Required: Fuel injector cleaner, appropriate socket set.
• Disconnect the fuel injector harness for Cylinder 1.
• Remove the fuel injector by unbolting it and gently pulling it out.
• Clean the injector using a fuel injector cleaning kit or replace it if clogged.
• Reinstall the injector and reconnect the harness.

5. Compression Test (if misfire persists)

• Tools Required: Compression tester.
• Remove the spark plug for Cylinder 1.
• Insert the compression tester into the spark plug hole and crank the engine to get a reading.
• Compare the compression reading with the manufacturer's specifications.
• If compression is low, further investigation into potential internal engine issues is needed.