how to fix P0174 code on Honda Pilot YF3 (2016-2022)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working with electrical components.
• Allow the engine to cool down before beginning any work.

2. Inspect and Repair Air Intake System

• Tools Required: Screwdriver set, vacuum gauge
• Check the air intake hose and clamps for tightness. Replace if damaged.
• Inspect the air filter and replace if dirty or clogged.
• Use a vacuum gauge to test for leaks in the intake manifold. Repair any leaks found.

3. Fuel System Inspection

• Tools Required: Fuel pressure gauge
• Connect the fuel pressure gauge to the fuel rail.
• Start the engine and observe the fuel pressure. It should meet manufacturer specifications (typically around 40-50 psi for most Honda models).
• If the pressure is low, check the fuel pump and fuel filter for proper operation and replace as necessary.

4. MAF Sensor Cleaning or Replacement

• Tools Required: MAF cleaner, screwdriver set
• Remove the MAF sensor from the intake duct.
• Spray the MAF sensor with MAF cleaner and allow it to dry completely before reinstalling.
• If cleaning does not resolve the issue, replace the MAF sensor with a new one.

5. Fuel Injector Testing

• Tools Required: Multimeter or noid light
• Disconnect the fuel injector connectors.
• Use a multimeter to check for continuity in the injectors. If no continuity is found, replace the faulty injector.
• If injectors are functioning, ensure they are clean and free of debris.