how to fix P0301 code in Ford F-150 Fourteenth Generation (2021-present)

Solution

1. Preparation

• Gather required tools and parts.
• Disconnect the negative battery terminal for safety.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil cover if applicable.
• Using the spark plug socket, remove the spark plug from cylinder 1.
• Inspect the spark plug for wear, fouling, or damage.
• If necessary, replace with a new spark plug, ensuring the gap is set to manufacturer specifications (usually around 0.030-0.035 inches).
• Torque the spark plug to the manufacturer’s specified value (typically 13-15 lb-ft).

3. Check and Replace Ignition Coil

• Tools Required: Torque wrench, socket set.
• Remove the ignition coil by unbolting it and disconnecting the electrical connector.
• Inspect for any cracks or damage.
• If faulty, replace with a new ignition coil, ensuring it is properly seated.
• Torque the ignition coil mounting bolt to the manufacturer’s specified value (usually around 8-10 lb-ft).

4. Test Fuel Injector

• Tools Required: Noid light or fuel injector tester.
• Disconnect the fuel injector connector.
• Connect the noid light to the injector connector to check for signal.
• If there is no signal, inspect wiring and connectors for damage.
• If the injector is faulty, replace it by removing the fuel rail if necessary.

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 for a few seconds and record the reading.
• Compare the compression reading with the manufacturer’s specifications (usually between 120-150 psi).
• If compression is low, further investigation of the engine internals may be necessary.