how to fix P0174 code in Honda Accord Eleventh Generation (2023-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on the vehicle.

Tools Required:

• OBD-II scanner
• Fuel pressure gauge
• Socket set
• Torque wrench
• Multimeter
• Cleaning solution for MAF sensor

2. Inspect and Repair Air Intake System

• Inspect Air Intake Hoses:

  • Visually check hoses connected to the intake manifold for cracks or leaks.
  • Replace any damaged hoses.

• Check Air Filter:

  • Remove the air filter from the airbox.
  • Clean or replace the air filter if it’s dirty or clogged.

3. Test and Clean MAF Sensor

• Remove MAF Sensor:

  • Disconnect the electrical connector from the MAF sensor.
  • Unbolt and carefully remove the MAF sensor from the intake duct.

• Clean MAF Sensor:

  • Spray MAF sensor cleaner onto the sensor elements. Avoid touching them with fingers.
  • Allow it to dry completely before reinstallation.

4. Fuel System Inspection

• Check Fuel Pressure:

  • Connect the fuel pressure gauge to the fuel rail.
  • Turn the ignition to the "ON" position (do not start the engine) and check if the pressure is within the manufacturer's specifications.

• Inspect Fuel Injectors:

  • If fuel pressure is low, inspect fuel filters and the fuel pump.
  • If injectors are suspected to be clogged, remove and clean them or replace if necessary.

5. Final Assembly

• Reassemble all components in reverse order.
• Reconnect the battery.