how to fix the P0302 code on my Toyota RAV4 XA50 (2019-2024)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent any electrical shorts.
• Allow the engine to cool if it has been running.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket
• Remove the ignition coil from cylinder 2.
  • Unscrew the mounting bolts and disconnect the electrical connector.
• Remove the spark plug using a spark plug socket.
• Check the gap of the new spark plug against the manufacturer’s specifications.
• Install the new spark plug and torque it to the manufacturer’s specifications (typically around 13 lb-ft).
• Reinstall the ignition coil, ensuring a secure connection.

3. Inspect and Replace Ignition Coil

• If the ignition coil was found faulty during diagnostics:
• Tools Required: Socket set, torque wrench
• Disconnect the coil's electrical connector.
• Remove the bolts securing the ignition coil and lift it out.
• Install the new ignition coil and secure it with bolts, torquing them to specifications (usually around 7 lb-ft).
• Reconnect the electrical connector.

4. Check and Replace Fuel Injector

• If the fuel injector is suspected to be faulty:
• Tools Required: Socket set, fuel line disconnect tool
• Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
• Disconnect the fuel lines and electrical connector from the fuel injector.
• Remove the injector retaining clips and pull the injector out.
• Install a new fuel injector, ensuring proper alignment and secure connections.