how to fix P0302 code in Volkswagen Golf Eighth Generation (2020-present)

Solution

1. Preparation

• Gather the necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety while working on electrical components.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the ignition coil cover to access the spark plug.
  2. Use a spark plug socket to carefully remove the spark plug from cylinder 2.
  3. Inspect the spark plug for signs of wear or fouling; replace if necessary with an OEM-equivalent part.
  4. Apply anti-seize lubricant on the threads of the new spark plug if not pre-applied.
  5. Torque the spark plug to the manufacturer's specification (usually around 22 lb-ft).

3. Check and Replace Ignition Coil

• Sub-steps:
  1. Disconnect the electrical connector from the ignition coil.
  2. Remove the retaining bolts and lift the ignition coil out.
  3. Install a new ignition coil for cylinder 2.
  4. Reconnect the electrical connector securely.

4. Inspect and Replace Fuel Injector

• Sub-steps:
  1. Remove the intake manifold if necessary to access the fuel injector.
  2. Disconnect the electrical connector and fuel line from the fuel injector.
  3. Remove the retaining clips and pull out the fuel injector.
  4. Replace the fuel injector with a new one, ensuring proper orientation.
  5. Reconnect the fuel line and electrical connector securely.

5. Reassemble and Reconnect Battery

• Sub-steps:
  1. Reinstall any components removed during the repair (e.g., intake manifold).
  2. Reconnect the negative battery terminal.
  3. Start the engine and check for smooth operation.