how to address the P0174 code in my Honda Accord 10th Generation (2018-2022)?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Ensure the vehicle is on a flat, stable surface and use wheel chocks for safety.

2. Inspect and Repair Air Intake System

• Remove the air intake hose connected to the throttle body.
• Inspect the hose for cracks or signs of wear; replace if necessary.
• Check the throttle body for carbon buildup. If dirty, clean using throttle body cleaner and a soft cloth.

3. Clean or Replace MAF Sensor

• Locate the MAF sensor in the air intake system.
• Disconnect the electrical connector from the MAF sensor.
• Remove the MAF sensor using the appropriate socket or screwdriver.
• Clean the sensor using MAF sensor cleaner; allow it to dry completely before reinstalling.
• If the sensor is damaged, replace it with a new one.

4. Inspect and Repair Fuel System

• Use a fuel pressure gauge to check the fuel pressure. Refer to the service manual for the specific pressure range.
• If pressure is low, check the fuel pump and fuel filter; replace them if necessary.
• Ensure the fuel injectors are clean and functioning properly; consider using a fuel injector cleaner.

5. Check for Vacuum Leaks

• Inspect all vacuum lines for cracks or disconnections.
• Use a smoke machine or carburetor cleaner to find leaks; listen for any hissing sounds.
• Replace any faulty vacuum lines or gaskets.

6. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0174 code and any other related codes.
• Start the engine and allow it to reach operating temperature.