what does it mean if my Volkswagen Golf MK6 (2009-2014) is throwing a P0302 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to avoid any electrical shorts.

2. Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from cylinder 2 by unscrewing it.
• Carefully remove the spark plug using the spark plug socket.
• Inspect the old spark plug; if it is worn or damaged, replace it.
• Install the new spark plug by hand to avoid cross-threading, then torque it to the manufacturer’s specification (typically around 18 lb-ft).
• Reinstall the ignition coil.

3. Replace Ignition Coil

• Tools Required: Socket set, torque wrench.
• Remove the screws securing the ignition coil to the engine.
• Disconnect the electrical connector from the ignition coil.
• Replace the faulty ignition coil with a new one.
• Reconnect the electrical connector and secure it with screws.

4. Test Fuel Injector

• Tools Required: Fuel injector testing kit.
• Connect the fuel injector tester to cylinder 2’s fuel injector.
• Activate the injector and observe the spray pattern.
• If the injector is faulty, replace it with a new one.

5. Check Compression (if necessary)

• Tools Required: Compression tester.
• Remove the spark plugs from all cylinders.
• Insert the compression tester into the spark plug hole of cylinder 2.
• Crank the engine and note the compression reading; it should be within the manufacturer’s specified range.
• If low, further investigation may be required (valve issues, head gasket, etc.).