what does P0302 code mean for my Toyota RAV4 XA50 (2019-2024)?

Solution

1. Preparation

• Gather tools and parts required for repairs.
• Disconnect the battery to prevent electrical shorts.
• Make sure the engine is cool before starting.

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 2 using a socket set.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear or damage; replace it if necessary.
• Install the new spark plug to the manufacturer’s torque specifications (typically around 13 ft-lbs).
• Reinstall the ignition coil.

3. Check and Replace Ignition Coil (if necessary)

• If the spark plug is in good condition, test the ignition coil for proper resistance using a multimeter.
• If the ignition coil is faulty, remove it and replace it with a new one.
• Ensure the new ignition coil is securely connected to the spark plug.

4. Inspect Fuel Injector

• If the ignition system is functioning correctly, check the fuel injector for cylinder 2.
• Remove the fuel rail if necessary to access the injector.
• Test the injector's operation using a noid light or multimeter.
• Replace the injector if it is found faulty.

5. Compression Test

• If misfire persists, perform a compression test on cylinder 2 to check for mechanical issues.
• If compression is low, further investigation into the engine’s internals may be needed, including valve and piston inspection.