how to fix P0301 code in Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the engine cover if necessary.
• Disconnect the ignition coil connector for cylinder 1.
• Remove the ignition coil bolt and lift the coil off.
• Remove the spark plug using the spark plug socket.
• Inspect the spark plug for fouling or damage; replace it if necessary.
• Install the new spark plug and torque it to the manufacturer’s specification (typically around 13-15 lb-ft).
• Reinstall the ignition coil and reconnect the connector.

3. Test and Replace Ignition Coil

• If the spark plug is in good condition, test the ignition coil using a multimeter to check for the proper resistance.
• Tools Required: Multimeter.
• If the resistance is outside specifications, replace the ignition coil with a new one.
• Reinstall the ignition coil and reconnect the connector.

4. Inspect and Test Fuel Injector

• Check the fuel injector operation by connecting a noid light or using a multimeter to test for voltage at the connector.
• If the injector is not firing, replace the fuel injector for cylinder 1.
• Tools Required: Fuel injector removal tool, socket set.
• Reinstall the fuel injector and ensure it is seated properly.

5. Compression Test

• If misfire continues, perform a compression test to ensure that there are no internal engine issues.
• Tools Required: Compression tester.
• Remove the spark plug and insert the compression tester.
• Crank the engine and record the compression reading; it should be within the manufacturer’s specifications.
• If the compression is low, further inspection of the engine internals is required.