how to fix P0302 code in Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the battery to ensure safety during the repair.
• Allow the engine to cool down before starting work.

2. Replace Ignition Coil and Spark Plug

• Tools Required: Socket set, torque wrench, dielectric grease
• Remove the engine cover (if applicable) to access the ignition components.
• Disconnect the electrical connector from the ignition coil on cylinder 2.
• Remove the bolts securing the ignition coil and carefully pull it out.
• Remove the spark plug using a spark plug socket and ratchet. Inspect for signs of wear, carbon buildup, or damage.
• Install the new spark plug hand-tight, then torque to the manufacturer's specification (typically around 22 lb-ft or 30 Nm).
• Apply a small amount of dielectric grease to the ignition coil connector before installation.
• Reinstall the ignition coil, securing it with bolts and reconnecting the electrical connector.

3. Test and Replace Fuel Injector (if necessary)

• Tools Required: Fuel injector puller (if required), new fuel injector
• Disconnect the electrical connector and fuel line from the fuel injector on cylinder 2.
• Remove the fuel injector by pulling it out from its seating in the intake manifold.
• Inspect the old injector for clogs or damage. If faulty, replace it with a new one.
• Reinstall the new fuel injector, ensuring it is seated properly and reconnect the fuel line and electrical connector.

4. Final Assembly

• Reinstall any components removed for access, including the engine cover.
• Reconnect the battery.
• Clear any stored trouble codes using the OBD-II scanner.