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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to avoid electrical shorts.
• Allow the engine to cool down completely before beginning work.

2. Replace Spark Plug

• Remove the engine cover if necessary.
• Use a socket wrench to carefully unscrew and remove the spark plug from cylinder 1.
• Inspect the old spark plug for signs of fouling or wear.
• Install a new spark plug, ensuring it is gapped correctly (consult the vehicle manual for specifications).
• Torque the spark plug to the manufacturer’s specifications (typically around 13 lb-ft).

3. Check and Replace Ignition Coil

• Locate the ignition coil for cylinder 1.
• Disconnect the electrical connector from the ignition coil.
• Remove the ignition coil from the cylinder head by unscrewing any securing bolts.
• If swapping, install a known good ignition coil in its place. If replacing, install the new ignition coil.
• Reconnect the electrical connector securely.

4. Inspect and Replace Fuel Injector

• Disconnect the fuel injector connector for cylinder 1.
• Remove the fuel rail if needed to access the injector.
• Pull out the fuel injector after unscrewing any retaining clips or bolts.
• Install a new fuel injector, ensuring proper seating and securing it in place.
• Reconnect the fuel injector electrical connector.

5. Reassemble and Test

• Reinstall the engine cover if removed.
• Reconnect the negative battery terminal.
• Start the engine and allow it to reach operating temperature.