how to fix P0301 code in Ford Explorer Sixth Generation (2020-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil cover if applicable.
• Remove the ignition coil from cylinder 1 by unbolting it.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear; replace it with a new one if necessary.
• Torque the new spark plug to the manufacturer's specifications (usually around 13 lb-ft).
• Reinstall the ignition coil and ensure it's seated properly.

3. Inspect and Replace Ignition Coil

• If the spark plug is fine, test the ignition coil for resistance using a multimeter.
• If the ignition coil is faulty, replace it with a new one.
• Reconnect the ignition coil and the electrical connector securely.

4. Check Fuel Injector

• If the ignition system is functioning properly, check the fuel injector.
• Disconnect the fuel injector connector and check the resistance with a multimeter (should typically be around 12-16 ohms).
• If the injector is faulty, remove it and replace it with a new one.
• Ensure proper seating and reconnect electrical connectors.

5. Test for Vacuum Leaks

• Inspect all vacuum hoses leading to the intake manifold for cracks or disconnections.
• Use a smoke machine or carburetor cleaner to identify any vacuum leaks.
• If leaks are found, replace damaged hoses or reseal connections.