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

Solution

1. Preparation

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

2. Replace Spark Plug

• Tools Required: Socket set, spark plug socket, torque wrench.
• Remove the engine cover if necessary to access the spark plugs.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for signs of wear or fouling. Replace with a new spark plug if needed.
• Torque the new spark plug to the manufacturer's specifications (typically around 13-16 ft-lbs for most Toyota spark plugs).
• Reinstall the ignition coil over the new spark plug.

3. Check and Replace Ignition Coil

• Tools Required: Socket set, torque wrench.
• Disconnect the electrical connector from the ignition coil.
• Remove the ignition coil bolts and carefully pull out the ignition coil.
• Inspect the coil for cracks or damage. Replace if defective.
• Install the new ignition coil, securing it with bolts and reconnecting the electrical connector.
• Torque the ignition coil bolts to the manufacturer's specifications.

4. Inspect Fuel Injector

• Tools Required: Fuel injector cleaning kit (if cleaning is required).
• Remove the fuel injector connector from cylinder 2.
• Check for proper connection and any visible damage.
• If necessary, perform a fuel injector cleaning or replace the fuel injector if it is faulty.

5. Compression Test (if needed)

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 2.
• Insert the compression tester into the spark plug hole and crank the engine.
• Note the compression reading and compare it to the manufacturer's specifications.
• If the reading is low, further investigation may be needed for internal engine issues.