how to fix P0302 code in Toyota Camry Eighth Generation (2018-present)

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool before starting work.

2. Replace Spark Plug and Ignition Coil (if necessary)

• Tools Required: Socket set, torque wrench, ratchet
• Sub-steps:
  1. Remove the engine cover (if applicable) by unscrewing the retaining bolts.
  2. Disconnect the electrical connector from the ignition coil on cylinder 2.
  3. Remove the ignition coil by unscrewing the mounting bolt and gently pulling it out.
  4. Remove the spark plug using a spark plug socket. Inspect it for wear or damage.
  5. Install a new spark plug, torquing it to the manufacturer's specification (typically 13-15 ft-lbs).
  6. Reinstall the ignition coil, securing it with the mounting bolt and reconnecting the electrical connector.

3. Replace Fuel Injector (if necessary)

• Tools Required: Fuel injector removal tool, socket set, torque wrench
• Sub-steps:
  1. Relieve the fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
  2. Disconnect the electrical connector from the fuel injector.
  3. Remove any retaining clips or bolts securing the fuel rail.
  4. Carefully remove the fuel rail along with the injector from the engine.
  5. Replace the faulty fuel injector with a new one, ensuring proper sealing and orientation.
  6. Reassemble the fuel rail and reconnect any clips/bolts.

4. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use an OBD-II scanner to clear the P0302 code from the system.