how to fix the P0302 code on my Toyota RAV4 Fourth Generation (2013-2018)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the engine is cool and disconnect the negative battery terminal to prevent electrical shock.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket
• Remove the engine cover (if applicable) by unscrewing any fasteners.
• Disconnect the ignition coil connector and unbolt the ignition coil from cylinder 2.
• Remove the old spark plug using the spark plug socket.
• Inspect the spark plug gap and the condition of the electrode. Replace if worn or fouled.
• Install the new spark plug, ensuring it is torqued to the manufacturer’s specification (typically around 13-15 lb-ft).
• Reinstall the ignition coil and connector, and replace the engine cover.

3. Replace Ignition Coil (if needed)

• Tools Required: Socket set, torque wrench
• If the ignition coil was found to be faulty during diagnostics, remove it from cylinder 2 by unbolting it.
• Install the new ignition coil and secure it according to manufacturer specifications.
• Reconnect the ignition coil connector.

4. Clean or Replace Fuel Injector (if needed)

• Tools Required: Fuel injector cleaning kit or replacement injector
• If the fuel injector is malfunctioning, remove it by disconnecting the fuel line and electrical connector.
• Clean the injector using a fuel injector cleaning kit or replace it with a new one.
• Reinstall the injector, ensuring it is seated properly and reconnect the fuel line and electrical connector.