how to fix P0301 code in Skoda Octavia NFL (2020-Present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the engine is cool before starting work.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil cover if applicable.
• Disconnect the electrical connector from the ignition coil.
• Remove the ignition coil from cylinder 1.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear or damage; replace if necessary.
• Install the new spark plug, torqueing to the manufacturer’s specifications (typically around 20 Nm).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Check and Replace Ignition Coil (if needed)

• Tools Required: Socket set, torque wrench.
• If the ignition coil appears faulty (cracks or burn marks), replace it.
• Remove the faulty ignition coil and install a new one, torquing to specifications.
• Reconnect the electrical connector.

4. Inspect and Replace Fuel Injector (if necessary)

• Tools Required: Fuel injector removal tool, socket set.
• Disconnect the fuel injector connector.
• Remove the fuel rail bolts and carefully lift the rail to access the injector.
• Remove the injector from the rail and inspect it for clogs or damage.
• Replace the injector if necessary, ensuring to lubricate the O-rings before installation.
• Reassemble the fuel rail and reconnect the fuel injector connector.

5. Perform Compression Test

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 1.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading.
• Compare the reading to manufacturer specifications (usually around 150-200 psi).
• If compression is low, further investigation may be needed for valve or head gasket issues.