how to fix P0301 code in Ford Mustang S650 (2024-Present)

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool down before starting work.

2. Inspect and Replace Ignition Components

• Tools Required: Socket set, torque wrench, spark plug socket, multimeter.
• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Disconnect the wiring harness from the ignition coil on cylinder 1.
  3. Remove the ignition coil using a socket wrench, and inspect for cracks or carbon tracking.
  4. Replace the ignition coil if damaged.
  5. Remove the spark plug from cylinder 1 using a spark plug socket.
  6. Inspect the spark plug for wear; replace it if the insulator is damaged or if the gap is incorrect.
  7. Reinstall the new spark plug and tighten it to the manufacturer’s specified torque (typically around 13-15 lb-ft).
  8. Reinstall the ignition coil and reconnect the wiring harness.

3. Inspect Fuel Injector

• Tools Required: Fuel injector cleaner, socket set.
• Sub-steps:
  1. Disconnect the fuel injector harness.
  2. Remove the fuel injector using a socket.
  3. Inspect for clogs; clean with fuel injector cleaner or replace if necessary.
  4. Reinstall the fuel injector ensuring it is seated correctly.
  5. Reconnect the fuel injector harness.

4. Conduct Compression Test

• Tools Required: Compression tester.
• Sub-steps:
  1. Remove the spark plug from cylinder 1.
  2. Install the compression tester in the spark plug hole.
  3. Crank the engine for several seconds and record the compression reading.
  4. Compare the reading to manufacturer specifications. If low, further diagnostics may be required for internal engine issues.