how to fix P0302 misfire code in my Volkswagen Golf MK7 (2015-2019)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts during repairs.

2. Replace Spark Plug (if faulty)

• Remove the engine cover (if applicable) using a socket set.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the old spark plug for wear; replace it if it shows signs of damage or excessive wear.
• Apply anti-seize compound on the threads of the new spark plug.
• Torque the new spark plug to the manufacturer’s specifications (typically around 22 ft-lbs for most spark plugs).

3. Replace Ignition Coil (if faulty)

• Disconnect the electrical connector from the ignition coil.
• Remove the retaining bolt(s) securing the ignition coil in place.
• Pull out the ignition coil from the spark plug tube.
• Install the new ignition coil by reversing the removal steps and ensuring it is seated properly.

4. Inspect and Replace Fuel Injector (if faulty)

• Remove the intake manifold or any components obstructing access to the fuel rail (if necessary).
• Disconnect the fuel injector connector and fuel line (use appropriate tools to relieve fuel pressure).
• Remove the fuel injector from the rail, checking for any debris or blockage.
• Install the new fuel injector with new O-rings and ensure it is properly seated.
• Reconnect the fuel line and electrical connector.

5. Reassemble and Test

• Reattach any components that were removed for access.
• Reconnect the negative battery terminal.
• Start the engine and allow it to idle, checking for any misfires or abnormal sounds.