how to fix P0174 code in Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

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

2. Inspect and Repair Vacuum Leaks

• Tools Required: Vacuum gauge, hose clamps, screwdriver set
• Inspect all vacuum hoses for cracks or disconnections; replace any damaged hoses.
• Use a vacuum gauge to test for leaks in the intake manifold.
• Tighten or replace gaskets as necessary.

3. Clean or Replace MAF Sensor

• Tools Required: MAF cleaner, screwdriver set
• Remove the MAF sensor from the air intake duct.
• Spray the MAF sensor with MAF cleaner and allow it to dry completely.
• Reinstall the MAF sensor and ensure all connections are secure.

4. Check and Adjust Fuel System

• Tools Required: Fuel pressure gauge, injector cleaner
• Connect the fuel pressure gauge to the fuel rail and turn the ignition to the "on" position to check the fuel pressure.
• If the pressure is low, check the fuel pump and filter, replacing them as necessary.
• If fuel injectors are clogged, use an injector cleaner or consider professional cleaning.

5. Throttle Body Cleaning

• Tools Required: Throttle body cleaner, soft cloths, screwdriver set
• Remove the air intake duct to access the throttle body.
• Clean the throttle body with throttle body cleaner and a cloth to remove any carbon buildup.
• Reassemble the intake duct and ensure all connections are tight.