what does it mean if my Toyota Camry has a P0302 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the battery to prevent electrical shock.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the ignition coil from cylinder 2.
  2. Remove the spark plug using a spark plug socket.
  3. Inspect the spark plug for wear (check gap and carbon build-up).
  4. If damaged, replace with a new spark plug, ensuring to gap it according to specifications (typically 0.043 inches for Toyota Camry).
  5. Reinstall the ignition coil.

3. Test and Replace Ignition Coil

• Sub-steps:
  1. Use a multimeter to check the resistance of the ignition coil.
  2. If the resistance is outside the manufacturer’s specifications, replace the ignition coil.
  3. Reinstall the ignition coil and ensure it is properly seated.

4. Inspect and Clean Fuel Injector

• Sub-steps:
  1. Disconnect the fuel injector connector for cylinder 2.
  2. Remove the fuel injector using a fuel injector puller (if necessary).
  3. Inspect for clogs or deposits.
  4. Clean the injector using a fuel injector cleaner or replace if necessary.
  5. Reinstall the fuel injector and reconnect the connector.

5. Perform Compression Test

• Sub-steps:
  1. Remove the spark plug from cylinder 2.
  2. Insert a compression gauge into the spark plug hole.
  3. Crank the engine and record the compression reading.
  4. Compare the reading to the manufacturer’s specifications (typically around 180-200 psi).
  5. If low, diagnose potential causes (valve issues, head gasket, etc.).