how to fix P0302 cylinder 2 misfire code in Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool down.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover if necessary.
  2. Disconnect the ignition coil connector from cylinder 2.
  3. Use a spark plug socket to remove the spark plug from cylinder 2.
  4. Inspect the spark plug for signs of wear or carbon buildup.
  5. Replace with a new spark plug if necessary (OEM recommended specifications).
  6. Reinstall the spark plug and reconnect the ignition coil.

3. Check and Replace Ignition Coil

• Sub-steps:
  1. If the spark plug is fine, remove the ignition coil from cylinder 2.
  2. Check the coil for cracks or damage.
  3. If faulty, install a new ignition coil (ensure it matches OEM specifications).
  4. Reinstall the ignition coil and reconnect the connector.

4. Inspect 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 and test the injector operation using a multimeter.
  4. Replace the fuel injector if it is not functioning correctly.
  5. Reinstall the injector and reconnect the harness.

5. Check Compression

• Sub-steps:
  1. Remove the spark plug from cylinder 2.
  2. Insert a compression tester into the spark plug hole.
  3. Crank the engine and record the compression reading.
  4. If compression is low, further investigation into engine internals may be necessary.