how to fix P0302 misfire code on my Volkswagen Golf MK5 (2004-2008)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to ensure safety.

2. Replace Spark Plug

1. Remove the engine cover if applicable.
2. Locate the spark plug for cylinder 2 (usually the second plug from the timing belt side).
3. Use a spark plug socket to remove the old spark plug.
4. Inspect the old spark plug for signs of fouling or damage.
5. Install the new spark plug, tightening it to the manufacturer’s specified torque (typically around 22 ft-lbs for VW).
6. Reconnect the ignition coil.

3. Replace Ignition Coil

1. Disconnect the electrical connector from the ignition coil.
2. Remove the bolt securing the ignition coil using a socket.
3. Carefully pull the ignition coil out from the spark plug tube.
4. Install the new ignition coil by reversing the removal steps.
5. Reconnect the electrical connector to the ignition coil.

4. Test Fuel Injector

1. If the issue persists after replacing the spark plug and ignition coil, check the fuel injector for cylinder 2.
2. Disconnect the fuel injector connector.
3. Use a noid light to verify that the injector is receiving a signal. If not, check the wiring.
4. If the injector is faulty, replace it by removing the fuel rail and replacing the injector.