how to fix P0302 code on my Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to ensure safety while working on electrical components.
• Allow the engine to cool before starting any work.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Locate the spark plug for cylinder 2.
  3. Use a spark plug socket to remove the spark plug.
  4. Inspect the spark plug for wear or damage; replace if necessary.
  5. Install a new spark plug with the correct gap (typically 0.028-0.032 inches).
  6. Torque the spark plug to the specified value (usually around 18 lb-ft).

3. Check and Replace Ignition Coil

• Sub-steps:
  1. Unplug the electrical connector from the ignition coil for cylinder 2.
  2. Remove the ignition coil from the spark plug.
  3. Inspect the coil for cracks or carbon tracking and replace if defective.
  4. Install the new ignition coil and reconnect the electrical connector.

4. Inspect and Test Fuel Injector

• Sub-steps:
  1. Locate the fuel injector for cylinder 2.
  2. Disconnect the electrical connector from the fuel injector.
  3. Use a multimeter to test the injector's resistance (typically 12-16 ohms).
  4. If the resistance is out of specification, replace the fuel injector.
  5. Reconnect the electrical connector and ensure it is secure.

5. Final Assembly

• Sub-steps:
  1. Reinstall any components removed for access (engine cover, etc.).
  2. Reconnect the battery.
  3. Start the engine and check for any leaks or abnormal sounds.