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

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to prevent electrical shorts during repair.
• Allow the engine to cool down if it has recently been running.

2. Replace Spark Plug

• Remove the engine cover if applicable.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the removed spark plug for wear; replace it if damaged or fouled.
• Install a new spark plug and torque it to the manufacturer’s specifications (typically 13-16 lb-ft).

3. Test and Replace Ignition Coil

• Disconnect the ignition coil connector for cylinder 2.
• Remove the ignition coil using a ratchet and socket.
• Test the ignition coil using a multimeter; check for proper resistance. Replace if faulty.
• Install the new ignition coil, ensuring it is seated correctly, and reconnect the electrical connector.

4. Inspect and Replace Fuel Injector

• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel rail (if necessary) to access the fuel injector.
• Use a fuel injector removal tool to take out the injector.
• Replace with a new fuel injector and ensure proper O-ring sealing.
• Reinstall the fuel rail and reconnect the electrical connector.

5. Perform Compression Test (if needed)

• If previous steps do not resolve the issue, perform a compression test on cylinder 2.
• If compression is low, further investigation is needed into potential internal engine issues such as valve problems or piston damage.