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

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, compression tester, multimeter, fuel injector cleaning kit.
• Ensure the vehicle is on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shock.

2. Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Unplug the ignition coil connector on cylinder 1.
  3. Unscrew the ignition coil and remove it.
  4. Use a spark plug socket to remove the spark plug from cylinder 1.
  5. Inspect the spark plug and install a new spark plug, ensuring it is gapped correctly.
  6. Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil

• Sub-steps:
  1. If misfire persists, replace the ignition coil on cylinder 1.
  2. Remove the existing ignition coil as outlined in the previous step.
  3. Install the new ignition coil and ensure it is secured.
  4. Reconnect the ignition coil connector.

4. Inspect/Replace Fuel Injector

• Sub-steps:
  1. If issues continue, remove the fuel injector from cylinder 1.
  2. Inspect for clogs; clean or replace the injector if necessary.
  3. Reinstall the injector and reconnect any wiring or fuel lines.

5. Perform Compression Test

• Sub-steps:
  1. Remove the spark plug from cylinder 1.
  2. Insert the compression tester into the spark plug hole.
  3. Crank the engine and record the compression reading.
  4. If the reading is low, further diagnosis of engine internals may be needed.