why is my Honda Civic 11th Generation (2022-Present) throwing a P0302 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on the vehicle.

2. Inspect Ignition Components

• Tools Required: Socket set, torque wrench
• Sub-steps:
  1. Remove the engine cover if equipped.
  2. Disconnect the ignition coil connector for cylinder 2.
  3. Unbolt the ignition coil and remove it.
  4. Inspect the spark plug for wear or damage; replace if needed (gap should be set according to manufacturer specifications).
  5. Reinstall the ignition coil, ensuring it is properly seated.

3. Test Fuel Injector

• Tools Required: Multimeter, fuel injector tester
• Sub-steps:
  1. Disconnect the fuel injector connector for cylinder 2.
  2. Use a multimeter to test for proper resistance (consult specifications for exact values).
  3. If the injector is faulty, replace it with a new one.
  4. Reconnect the fuel injector connector.

4. Compression Test

• Tools Required: Compression tester
• Sub-steps:
  1. Remove the spark plug from cylinder 2.
  2. Insert the compression tester into the spark plug hole.
  3. Crank the engine to obtain a compression reading (compare against manufacturer specifications).
  4. If compression is low, further investigation may be needed (e.g., valve issues or head gasket).

5. Inspect Air Intake and Vacuum

• Tools Required: Visual inspection tools
• Sub-steps:
  1. Inspect the air intake hose and connections for any cracks or leaks.
  2. Check for any vacuum hoses connected to the intake manifold for damage or disconnections.
  3. Replace any damaged hoses as necessary.