how do I resolve a P0301 code in my Skoda Octavia NFL (2020-Present)

Solution

1. Preparation

• Gather tools and parts:
  • Tools: OBD-II scanner, socket set, torque wrench, compression tester, fuel injector cleaning kit, vacuum gauge.
  • Parts: New spark plug, new ignition coil (if needed), fuel injector (if needed).
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Replace Spark Plug

1. Disconnect the negative battery terminal to ensure safety.
2. Remove the engine cover if necessary to access the spark plug.
3. Use a socket wrench to remove the spark plug from cylinder 1.
4. Inspect the old spark plug for signs of wear or fouling.
5. Install a new spark plug, tightening it to the manufacturer’s specified torque (usually around 15-20 ft-lbs).
6. Reconnect any components removed and the negative battery terminal.

3. Check and Replace Ignition Coil

1. If the misfire persists, disconnect the ignition coil connector.
2. Remove the ignition coil from cylinder 1.
3. Inspect the ignition coil for cracks or damage.
4. If faulty, install a new ignition coil and reconnect the connector.

4. Compression Test

1. Remove the spark plug from cylinder 1.
2. Insert the compression tester into the spark plug hole.
3. Crank the engine for several seconds to obtain a reading.
4. Compare the reading to the manufacturer’s specifications (typically 140-200 psi).
5. If compression is low, further investigation into piston rings or valves may be needed.

5. Fuel Injector Inspection

1. Disconnect the fuel injector connector for cylinder 1.
2. Use a multimeter to check the resistance of the injector (should typically be around 12-16 ohms).
3. If the injector is faulty, replace it with a new one.
4. Clean the fuel injector if it is clogged using a fuel injector cleaning kit.