how to fix engine misfire code P0302 in Volkswagen Golf Eighth Generation (2020-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a flat surface and engage the parking brake.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Ignition Coil

• Sub-steps:
  1. Remove the engine cover if applicable using a socket set.
  2. Disconnect the electrical connector from the ignition coil on cylinder 2.
  3. Remove the ignition coil by unscrewing it with a socket wrench.
  4. Install the new ignition coil by reversing the removal steps.
  5. Reconnect the electrical connector to the ignition coil.

3. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the ignition coil from cylinder 2 to access the spark plug.
  2. Use a spark plug socket to carefully unscrew the old spark plug.
  3. Check the condition of the spark plug; if worn or fouled, replace it with a new one, ensuring the gap is set to manufacturer specifications.
  4. Install the new spark plug and torque it to the manufacturer’s specifications (usually around 15-20 ft-lbs).
  5. Reattach the ignition coil over the new spark plug.

4. Check and Clean Fuel Injector

• Sub-steps:
  1. Locate the fuel injector for cylinder 2.
  2. Disconnect the fuel injector electrical connector.
  3. Remove the fuel injector using a socket set.
  4. Inspect the injector for clogs; clean it using an appropriate fuel injector cleaner if necessary.
  5. Reinstall the cleaned or new fuel injector and reconnect the electrical connector.

5. Reassemble and Test

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Start the engine and allow it to reach operating temperature.
  3. Monitor the engine for any signs of misfire or rough idle.