how to fix P0302 code in Toyota Camry Eighth Generation (2018-present)

Solution

1. Preparation

• Gather necessary tools and components.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench
• Remove the ignition coil cover if applicable.
• Remove the ignition coil from cylinder 2 by unbolting it and disconnecting the electrical connector.
• Use a spark plug socket to remove the old spark plug from cylinder 2.
• Check the gap on the new spark plug and adjust to specifications (typically 0.043 inches for Toyota).
• Install the new spark plug and torque it to the manufacturer specification (typically 13 lb-ft).

3. Replace Ignition Coil

• Reinstall the ignition coil onto the new spark plug.
• Secure the ignition coil with the mounting bolt and reconnect the electrical connector.
• If needed, repeat the replacement for ignition coils on other cylinders if they show wear.

4. Inspect and Replace Fuel Injector

• Tools Required: Fuel injector puller (if necessary), ratchet, torque wrench
• Disconnect the fuel injector electrical connector and any associated mounting hardware.
• Remove the fuel rail if necessary to access the fuel injector.
• Replace the faulty fuel injector with a new one, ensuring O-rings are lubricated and properly seated.
• Reassemble any components that were removed in the process.

5. Reassemble and Test

• Reconnect the negative battery terminal.
• Clear the trouble codes using the OBD-II scanner.
• Start the engine and allow it to idle, checking for any irregularities.