how to fix P0302 code on my Toyota Camry Seventh Generation (2012-2017)

Solution

1. Preparation

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

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Steps:
  1. Remove the ignition coil cover if equipped.
  2. Disconnect the ignition coil connector for cylinder 2.
  3. Remove the ignition coil from cylinder 2.
  4. Using a spark plug socket, carefully remove the spark plug from cylinder 2.
  5. Inspect the spark plug for wear, replacing it with a new one if necessary.
  6. Torque the new spark plug to manufacturer specifications (typically 13-16 lb-ft).

3. Check and Replace Ignition Coil (if necessary)

• Tools Required: Socket set.
• Steps:
  1. If the ignition coil is faulty, replace it with a new one.
  2. Install the new ignition coil in cylinder 2.
  3. Reconnect the ignition coil connector and ensure it is secure.

4. Inspect and Replace Fuel Injector (if necessary)

• Tools Required: Fuel injector removal tool, socket set.
• Steps:
  1. If the injector is found to be faulty during diagnostics, remove the fuel rail to access the injector.
  2. Disconnect the fuel injector connector.
  3. Remove the retaining clips and extract the fuel injector.
  4. Install the new fuel injector and reattach the fuel rail.
  5. Reconnect the fuel injector connector.

5. Final Checks

• Steps:
  1. Reassemble any components removed during repair.
  2. Reconnect the negative battery terminal.
  3. Start the engine and allow it to idle, checking for any abnormal symptoms.