what causes the P0302 code in my Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

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

2. Inspect and Replace Spark Plug

1. Remove the ignition coil cover (if applicable) using a socket set.
2. Unscrew and remove the spark plug from cylinder 2 using a spark plug socket.
3. Inspect the spark plug for signs of wear, fouling, or damage.
4. Replace the spark plug with a new one, ensuring it meets OEM specifications (typically NGK or Bosch, check gap).
5. Torque the spark plug to the manufacturer’s specification (usually around 20-30 Nm).

3. Check and Replace Ignition Coil

1. Disconnect the electrical connector from the ignition coil in cylinder 2.
2. Remove the ignition coil from the spark plug by pulling it straight up.
3. Inspect the coil for cracks or carbon tracking.
4. If faulty, install a new ignition coil, ensuring it is securely seated.
5. Reconnect the electrical connector to the coil.

4. Inspect Fuel Injector

1. Remove the fuel rail if necessary to access the fuel injector for cylinder 2.
2. Check the injector for clogs or leaks, and inspect wiring connections.
3. If the injector is defective, replace it with a new one, ensuring proper seating.
4. Reassemble the fuel rail and reconnect fuel lines, being cautious of fuel spills.

5. Perform Compression Test (if necessary)

1. Remove the spark plug from cylinder 2.
2. Insert the compression gauge into the spark plug hole.
3. Crank the engine several times to achieve a reading.
4. Compare the compression reading to the manufacturer’s specifications (usually around 150-200 psi).
5. If compression is low, further engine diagnostics may be required.