what does it mean if my Volkswagen Golf MK7 (2015-2019) has a P0302 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before starting work.

2. Replace Spark Plug (if damaged)

• Remove the ignition coil from cylinder 2 by unbolting it and disconnecting the electrical connector.
• Remove the spark plug using a spark plug socket and ratchet.
• Inspect the old spark plug for signs of wear or damage; replace it if necessary.
• Install the new spark plug, ensuring it is gapped correctly (typically 0.028-0.031 inches for MK7).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil (if faulty)

• If the ignition coil is suspected to be faulty after testing, remove it from the engine.
• Install the new ignition coil, ensuring it is seated properly.
• Reconnect the electrical connector to the ignition coil.

4. Replace Fuel Injector (if failed)

• If the fuel injector is found to be faulty, remove the fuel rail from the engine (ensure fuel system pressure is relieved before removal).
• Remove the old fuel injector from cylinder 2.
• Install the new fuel injector, ensuring proper sealing and alignment.
• Reattach the fuel rail and reconnect any necessary lines.