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

Solution

1. Preparation

• Gather tools and parts: OBD-II scanner, socket set, torque wrench, multimeter, replacement spark plug and ignition coil (if needed).
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Replace Spark Plug

• Step 1: Disconnect the negative battery terminal to prevent electrical shorts.
• Step 2: Remove the ignition coil from cylinder 1 by unscrewing the retaining bolts and gently pulling it out.
• Step 3: Remove the old spark plug using a spark plug socket. Inspect for signs of wear or carbon buildup.
• Step 4: Install the new spark plug, ensuring it is torqued to the manufacturer's specification (typically 20-30 Nm).
• Step 5: Reinstall the ignition coil and secure it with the retaining bolts.

3. Replace Ignition Coil (if necessary)

• Step 1: After inspecting with a multimeter and determining the ignition coil is faulty, remove the defective coil from cylinder 1.
• Step 2: Install the new ignition coil, ensuring proper seating and securing it with bolts.
• Step 3: Reconnect the electrical connector to the ignition coil.

4. Check Fuel Injector

• Step 1: If misfire persists, remove the fuel injector for cylinder 1 by disconnecting its electrical connector and unscrewing it.
• Step 2: Inspect the injector for clogs; clean or replace if necessary.
• Step 3: Reinstall the fuel injector, ensuring it is sealed properly.

5. Reconnect Battery and Clear Codes

• Step 1: Reconnect the negative battery terminal.
• Step 2: Use the OBD-II scanner to clear the fault codes from the engine control module.