how to fix P0302 misfire code on Volkswagen Golf MK6 (2009-2014)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool before starting repairs.

2. Remove Ignition Coil and Spark Plug

• Tools Required: Socket set, torque wrench, ratchet, extension.
• Remove the engine cover if applicable.
• Disconnect the ignition coil connector from cylinder 2.
• Remove the ignition coil bolts and pull the coil out.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear or damage.

3. Replace Spark Plug and Ignition Coil

• If the spark plug is worn or fouled, replace it with a new one (specifications: NGK or Bosch equivalent recommended).
  • Torque Specification: 20 Nm (15 lb-ft) for spark plug.
• Install the new ignition coil on cylinder 2.
  • Torque Specification: 10 Nm (7 lb-ft) for ignition coil bolts.
• Reconnect the ignition coil connector.

4. Inspect and Replace Fuel Injector (if necessary)

• If the injector is found to be faulty during diagnostics, remove the fuel rail (ensure fuel pressure is released first).
• Disconnect the fuel lines and electrical connector from the injector.
• Remove the injector from the fuel rail and replace it with a new one.
• Reinstall the fuel rail and reconnect all connections.

5. Reassemble and Reconnect Battery

• Reinstall any removed engine covers.
• Reconnect the negative battery terminal.
• Start the engine and allow it to idle.