how to fix P0174 code on Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.

2. Inspect and Repair Air Intake System

• Tools Required: Socket set, screwdriver set
• Inspect the intake manifold and vacuum hoses for leaks. Replace any damaged hoses or gaskets.
• Clean the throttle body using throttle body cleaner and a soft cloth.
• Reassemble any removed components securely.

3. Check and Clean MAF Sensor

• Tools Required: MAF sensor cleaner
• Remove the MAF sensor from the intake.
• Spray the MAF sensor with the cleaner and allow it to dry completely before reinstallation.
• Reinstall the MAF sensor securely.

4. Test and Repair Fuel System Components

• Tools Required: Fuel pressure gauge, injector cleaning kit
• Check fuel pressure using the fuel pressure gauge. It should meet manufacturer specifications (usually around 50-60 psi).
• If low, inspect the fuel pump and replace if necessary.
• Use the injector cleaning kit to clean clogged fuel injectors. Follow the kit instructions carefully.

5. Inspect Exhaust and O2 Sensors

• Tools Required: Socket set
• Inspect the exhaust system for any leaks or holes that could introduce excess air.
• Replace any faulty or damaged oxygen sensors as necessary.