how to fix P0301 code in Volkswagen Golf MK7.5 (2020-Present)

Solution

1. Preparation

• Gather the necessary tools and parts before starting the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shock.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove Engine Cover: If applicable, remove any engine covers obstructing access to spark plugs using a socket set.
  2. Remove Spark Plug: Use a spark plug socket and ratchet to carefully unscrew and remove the spark plug from cylinder 1.
  3. Inspect Spark Plug: Check for signs of wear, fouling, or damage. Replace if necessary.
  4. Install New Spark Plug: Torque the new spark plug to the manufacturer’s specifications (typically around 20-25 Nm).

3. Inspect and Replace Ignition Coil

• Sub-steps:
  1. Disconnect Ignition Coil Connector: Carefully detach the electrical connector from the ignition coil on cylinder 1.
  2. Remove Ignition Coil: Unscrew the bolts holding the ignition coil in place and lift it out.
  3. Install New Ignition Coil: Place the new ignition coil in position and secure it with bolts. Reconnect the electrical connector.

4. Check Fuel Injector

• Sub-steps:
  1. Access Fuel Injector: Depending on the layout, you may need to remove the intake manifold for access.
  2. Inspect Fuel Injector: Check for clogs or leaks. If necessary, replace the fuel injector for cylinder 1.
  3. Reassemble Components: Ensure all removed components are reassembled correctly.

5. Final Steps

• Reconnect the negative battery terminal.
• Start the engine and allow it to idle to check for any abnormalities.