how to fix P0174 code in my Ford F-150 14th Generation (2021-2024)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative terminal of the battery to ensure safety.
• Allow the engine to cool down before starting work.

2. Inspect and Repair Air Intake System

• Sub-steps:
  • Remove the air intake duct and inspect it for cracks or loose connections.
  • Replace any damaged hoses or clamps.
  • Reinstall the duct securely.

3. Clean or Replace MAF Sensor

• Sub-steps:
  • Locate the MAF sensor on the air intake pathway.
  • Disconnect the electrical connector and carefully remove the sensor.
  • Clean the sensor using MAF cleaner or replace it if damaged.
  • Reinstall the sensor and reconnect the electrical connector.

4. Check Fuel System

• Sub-steps:
  • Connect a fuel pressure gauge to the fuel rail.
  • Turn the ignition to the "ON" position without starting the engine and check the fuel pressure reading.
  • If pressure is below specifications, inspect the fuel pump and replace if necessary.
  • If injectors are clogged, use a fuel injector cleaner or replace them as required.

5. Examine Exhaust System

• Sub-steps:
  • Inspect the exhaust system visually for any signs of leaks or restrictions.
  • Repair or replace any damaged sections of the exhaust.