how to address the P0302 engine code on Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather all required tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the negative terminal of the battery for safety.

2. Inspect and Replace Spark Plug

• Remove the engine cover if applicable.
• Locate and remove the spark plug wire or ignition coil for cylinder 2.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear; replace it if necessary with a new spark plug that meets OEM specifications (e.g., NGK or Bosch).
• Torque the new spark plug to the manufacturer’s specified torque value (usually around 20 Nm).

3. Check and Replace Ignition Coil

• If the spark plug is in good condition, test the ignition coil by swapping it with a coil from a different cylinder.
• If the misfire follows the ignition coil to the other cylinder, replace the ignition coil with a new one (OEM recommended).
• Ensure proper connections and secure mounting.

4. Inspect Fuel Injector

• If the ignition coil is functioning correctly, check the fuel injector for cylinder 2.
• Remove the fuel rail per the manufacturer's instructions.
• Clean or replace the injector if clogged.
• Reinstall the injector, ensuring it is seated correctly.

5. Perform Compression Test (if necessary)

• If the misfire persists, perform a compression test on cylinder 2.
• If compression is low, further diagnostics may be needed to check for internal engine issues such as valve or piston ring problems.