what does error code P0302 mean for my Toyota RAV4 Fifth Generation (2019-present)

Solution

1. Preparation

• Gather tools and materials needed for the repair.
• Disconnect the negative battery terminal to ensure safety during the repair process.

2. Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench
• Remove the ignition coil from cylinder 2 by disconnecting the electrical connector and unbolting it.
• Use the spark plug socket to remove the spark plug from cylinder 2.
• Inspect the new spark plug for proper gap settings according to manufacturer specifications.
• Install the new spark plug and torque it to the manufacturer’s specified value (typically around 13-16 ft-lbs).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil

• If the spark plug replacement does not resolve the issue, proceed to inspect and replace the ignition coil.
• Disconnect the ignition coil connector and unbolt the ignition coil from cylinder 2.
• Install the new ignition coil and secure it in place with bolts, then reconnect the electrical connector.

4. Clean or Replace Fuel Injector

• If misfire persists, check and clean the fuel injector for cylinder 2. If necessary, replace it.
• Disconnect the fuel injector electrical connector and remove the fuel rail to access the injector.
• Remove the fuel injector from the rail, clean it with a fuel injector cleaner, and reinstall or replace as needed.

5. Reassemble and Reconnect

• Reassemble any components removed during the repair.
• Reconnect the negative battery terminal.
• Clear any error codes using the OBD-II scanner.