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

Solution

1. Preparation

• Gather necessary tools and replacement parts.
• Disconnect the battery to prevent electrical issues.
• Ensure the vehicle is on a level surface and secure it with jack stands if lifting is necessary.

2. Inspect and Repair Air Intake System

• Sub-steps:
  1. Remove the air intake duct to access the throttle body and MAF sensor.
  2. Inspect the duct for cracks or loose clamps; replace if necessary.
  3. Use an appropriate cleaner to clean the MAF sensor.
  4. Reinstall the air intake duct securely.

3. Check and Replace Fuel Components

• Sub-steps:
  1. Connect the fuel pressure gauge to the fuel rail.
  2. Turn the ignition to the "ON" position (do not start the engine) and check the fuel pressure reading.
  3. If the pressure is low, inspect the fuel pump and fuel filter.
  4. Replace the fuel filter if clogged and test the fuel pump operation.
  5. If necessary, replace the fuel pump.

4. Inspect and Clean or Replace Fuel Injectors

• Sub-steps:
  1. Remove the engine cover to access the fuel rail and injectors.
  2. Disconnect the fuel line with a wrench and carefully remove the fuel injectors.
  3. Clean the injectors using a specialized injector cleaning kit or replace them if they are damaged.
  4. Reinstall the injectors and ensure all connections are secure.

5. Verify PCV System

• Sub-steps:
  1. Locate the PCV valve and inspect for blockages or damage.
  2. Replace the PCV valve if it is malfunctioning.
  3. Ensure all hoses are connected properly and are not cracked or leaking.