how to fix the P0301 misfire code in my Toyota Camry XV70 (2018-2024)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Ignition Coil

• Tools Required: Socket set, torque wrench.
• Remove the engine cover (if applicable) to access the ignition coils.
• Disconnect the electrical connector from the ignition coil in cylinder one.
• Remove the ignition coil bolts and take out the ignition coil.
• Inspect for cracks or carbon tracking. Replace if damaged.
• Install the new ignition coil, securing it with bolts to the manufacturer's torque specifications.

3. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench.
• Remove the spark plug using the spark plug socket.
• Inspect the spark plug for wear, carbon deposits, or damage.
• Replace with a new spark plug, ensuring it is gapped correctly according to manufacturer's specifications.
• Torque the spark plug to the recommended value.

4. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaner or replacement injector, basic hand tools.
• Disconnect the fuel rail and remove the fuel injector from cylinder one.
• Inspect the injector for clogs or damage.
• Clean with a fuel injector cleaner or replace with a new injector if necessary.
• Reinstall the injector and secure the fuel rail.

5. Reconnect Battery and Test

• Reconnect the battery terminals.
• Clear the error codes using the OBD-II scanner.
• Start the engine and monitor for smooth operation.