how to fix P0302 code in Toyota Camry XV40 (2007-2011)

Solution

1. Preparation

• Gather tools and necessary parts.
• Ensure the engine is cool and disconnect the negative battery terminal for safety.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil from cylinder 2:
  • Unplug the electrical connector.
  • Remove the mounting bolts.
  • Gently pull the coil out.
• Remove the spark plug using a spark plug socket:
  • Turn counterclockwise to loosen and remove it.
• Install the new spark plug:
  • Hand-tighten, then use a torque wrench to tighten to the manufacturer's specification (usually around 13-16 lb-ft).
• Reinstall the ignition coil:
  • Place it back in position, secure with bolts, and reconnect the electrical connector.

3. Replace Ignition Coil (if necessary)

• If the ignition coil was found faulty during diagnostics:
  • Follow the same steps as above for removal and installation, replacing the coil with a new one.

4. Inspect and Clean Fuel Injector (if necessary)

• If fuel injector issues are suspected:
  • Remove the fuel rail to access the injector:
    • Relieve fuel pressure by removing the fuel pump fuse and starting the engine until it stalls.
    • Disconnect fuel lines and remove mounting bolts.
  • Remove the injector from the rail and clean it using an appropriate fuel injector cleaner.
  • Reinstall the cleaned or new injector into the rail and reconnect lines.

5. Final Assembly and Check

• Reconnect any electrical connectors and ensure all components are securely fastened.
• Reconnect the negative battery terminal.