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

Solution

1. Preparation

• Gather tools and parts required for repair.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Repair Air Intake System

• Tools Required: Screwdriver set, hose clamps, flashlight
• Inspect the air filter and replace it if dirty.
• Check the intake manifold and throttle body for dirt or obstructions and clean as necessary.
• Ensure all connections are tight and secure, replacing any damaged hoses or clamps.

3. Fuel System Inspection

• Tools Required: Fuel pressure gauge, wrench set
• Connect the fuel pressure gauge to the fuel rail.
• Turn the ignition to the ON position (do not start) and check the fuel pressure reading; it should be within the manufacturer’s specifications.
• If pressure is low, inspect the fuel pump and fuel filter for proper operation and replace if necessary.

4. MAF Sensor Cleaning or Replacement

• Tools Required: MAF sensor cleaner, screwdriver
• Disconnect the MAF sensor electrical connector.
• Remove the MAF sensor from the air intake assembly.
• Spray the MAF sensor with MAF sensor cleaner and let it dry completely.
• Reinstall the MAF sensor and reconnect the electrical connector.

5. Vacuum Leak Repair

• Tools Required: Smoke machine (if available), hose clamps
• Use a smoke machine to identify vacuum leaks by introducing smoke into the intake system.
• Repair or replace any leaking vacuum hoses or components.