my Toyota Camry Eighth Generation (2018-present) has a check engine light with code P0302, what does...

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Remove the engine cover if present.
• Use a spark plug socket and ratchet to remove the spark plug from cylinder 2.
• Inspect the spark plug for signs of wear, carbon buildup, or damage. Replace if necessary.
• Torque the new spark plug to the manufacturer’s specifications, typically around 13-15 lb-ft.

3. Inspect and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil on cylinder 2.
• Remove the ignition coil by unbolting it (if applicable) and pulling it out of the spark plug well.
• Install a new ignition coil, ensuring it is seated properly, and reconnect the electrical connector.
• Torque any bolts to manufacturer's specifications.

4. Fuel Injector Inspection

• Disconnect the electrical connector from the fuel injector on cylinder 2.
• Use a noid light to check for power at the injector connector while cranking the engine.
• If no power is present, inspect wiring and connectors for damage.
• If the injector is faulty, replace the fuel injector following the manufacturer’s guidelines.

5. Reconnect Battery and Clear Codes

• Reconnect the battery terminals, ensuring they are tight.
• Use the OBD-II scanner to clear the check engine codes.
• Start the engine and ensure the check engine light remains off.