how to fix the P0302 code on my Volkswagen Golf MK7 (2015-2019)

Solution

1. Preparation

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

2. Replace Ignition Coil (if needed)

• Tools Required: Socket set, torque wrench, dielectric grease
• Remove the engine cover if necessary using a socket.
• Disconnect the electrical connector from the ignition coil.
• Remove the bolts securing the ignition coil and pull it out.
• Install the new ignition coil and torque to manufacturer specifications (usually around 8 Nm).
• Reconnect the electrical connector and apply dielectric grease to prevent moisture.

3. Replace Spark Plug (if needed)

• Tools Required: Spark plug socket, torque wrench
• Remove the ignition coil as described in the previous step.
• Use a spark plug socket to carefully remove the spark plug from cylinder 2.
• Inspect the old spark plug for signs of wear or carbon buildup.
• Install the new spark plug and torque it to manufacturer specifications (usually around 25 Nm).
• Reinstall the ignition coil.

4. Replace Fuel Injector (if needed)

• Tools Required: Fuel line removal tool, torque wrench, safety glasses
• Relieve the fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
• Disconnect the electrical connector and fuel line from the fuel injector.
• Remove the bolts securing the fuel rail and lift it slightly to access the injector.
• Replace the fuel injector and reassemble everything, ensuring proper torque specifications are followed.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0302 code and any other diagnostic trouble codes.