what does it mean when my Toyota RAV4 Fourth Generation (2013-2018) shows a P0302 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Ensure the vehicle is on a flat surface and secured with wheel chocks.

2. Remove the Spark Plug

• Remove the engine cover if applicable using a socket set.
• Disconnect the ignition coil connector for cylinder 2.
• Remove the ignition coil by unbolting it (if applicable) and carefully pulling it out.
• Use a spark plug socket to remove the spark plug from cylinder 2.

3. Replace Spark Plug

• Inspect the removed spark plug for wear; if it appears damaged, replace it.
• Install the new spark plug by hand to avoid cross-threading, then torque it to the manufacturer’s specifications (typically around 13-16 ft-lbs).
• Reinstall the ignition coil and reconnect the ignition coil connector.

4. Inspect and Replace Ignition Coil (if necessary)

• If the ignition coil was found defective during diagnostics, remove it as described above.
• Install a new ignition coil for cylinder 2, ensuring it is seated properly.
• Reconnect the ignition coil connector.

5. Check Fuel Injector Functionality

• If fuel injectors are suspected, remove the fuel rail to access the injector for cylinder 2.
• Inspect and clean or replace the injector if clogged or malfunctioning.
• Reinstall the fuel rail and reconnect any necessary connectors.