how to fix P0302 misfire code in Toyota Camry XV70 (2018-2024)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface, and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shock.

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 2 by unfastening the retaining bolt and disconnecting the electrical connector.
• Remove the spark plug using a spark plug socket and ratchet.
• Inspect the spark plug for wear, carbon buildup, or damage. Replace with a new spark plug if necessary (ensure proper gap as per manufacturer specifications).
• Reinstall the spark plug and torque it to the manufacturer's specifications (typically around 13-15 ft-lbs).

3. Inspect and Replace Ignition Coil

• If the spark plug is in good condition, inspect the ignition coil for cracks or signs of failure.
• Replace the ignition coil for cylinder 2 if it appears faulty.
• Reconnect the electrical connector and secure the ignition coil with the retaining bolt.

4. Check and Replace Fuel Injector (if necessary)

• If issues persist, remove the fuel injector for cylinder 2.
• Inspect the injector for clogs, corrosion, or damage. Clean or replace the injector as necessary.
• Reinstall the injector and ensure it is properly seated and connected.

5. Reconnect and Test

• Reconnect the battery terminal.
• Start the engine and check for check engine light illumination.
• Monitor engine performance to confirm the misfire has been resolved.