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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the engine is cool and disconnect the battery.
• Use the following tools:
  • OBD-II scanner
  • Socket set
  • Torque wrench
  • Compression tester
  • Multimeter
  • Noid light

2. Spark Plug and Ignition Coil Replacement

1. Remove the engine cover (if applicable) using a socket wrench.
2. Disconnect the ignition coil connector for cylinder 1 by pressing the tab and pulling it off.
3. Remove the ignition coil bolt using a socket wrench.
4. Carefully pull the ignition coil out of the spark plug well.
5. Remove the spark plug using a spark plug socket and ratchet.
6. Inspect the spark plug for wear and carbon buildup; replace if necessary.
7. Install a new spark plug, tightening to the manufacturer’s specified torque (typically around 13-15 lb-ft).
8. Install the new ignition coil, securing it with the bolt and reconnecting the electrical connector.

3. Fuel Injector Inspection/Replacement

1. Disconnect the fuel pump relay or fuse and crank the engine to relieve fuel pressure.
2. Remove the fuel rail bolts and carefully detach the fuel rail from the injectors.
3. Inspect the injector for proper seating and operation; replace if necessary.
4. Install new injectors by lubricating the O-rings with engine oil and pushing them firmly into the rail.
5. Reattach the fuel rail and secure it with bolts, ensuring proper alignment.

4. Compression Test (if necessary)

1. Remove the ignition coil and spark plug from cylinder 1.
2. Connect the compression tester to the spark plug hole.
3. Crank the engine several times and record the compression reading.
4. Compare the compression reading to manufacturer specifications; if low, further engine diagnostics may be needed.