what does error code P0302 indicate for my Toyota RAV4 XA40 (2013-2018)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent any electrical shorts.
• Allow the engine to cool down before starting any work.

2. Replace Spark Plug in Cylinder 2

1. Remove the engine cover (if applicable) by unscrewing any fasteners.
2. Locate the spark plug in cylinder 2 (refer to engine layout).
3. Use a spark plug socket and ratchet to remove the old spark plug.
4. Inspect the old spark plug for signs of wear or fouling.
5. Apply a small amount of anti-seize compound to the threads of the new spark plug.
6. Install the new spark plug and torque it to the manufacturer’s specification (typically around 13-16 ft-lbs).
7. Reattach the engine cover.

3. Inspect and Replace Ignition Coil (if necessary)

1. Disconnect the electrical connector from the ignition coil in cylinder 2.
2. Remove the retaining bolts securing the ignition coil.
3. Pull the ignition coil out of the cylinder head.
4. Compare the old ignition coil with the new one to ensure compatibility.
5. Install the new ignition coil and torque the bolts to specification.
6. Reconnect the electrical connector.

4. Clean or Replace Fuel Injector (if necessary)

1. Remove the intake manifold (if required) to access the fuel injector.
2. Disconnect the fuel line and electrical connector from the injector.
3. Remove the fuel injector using an appropriate tool.
4. Clean the injector with a specialized cleaner, or replace it with a new one if clogged.
5. Reinstall the injector, ensuring proper sealing.

5. Reconnect Battery and Test

1. Reconnect the negative battery terminal.
2. Start the engine and observe for any irregularities.
3. Clear the error codes using the OBD-II scanner and take the vehicle for a test drive.