how to fix P0174 code in Honda Civic 11th Generation (2022-Present)?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before beginning work.

2. Inspect and Repair Intake System

• Tools Required: Socket set, screwdrivers, vacuum gauge
• Inspect the intake manifold, vacuum hoses, and throttle body for any signs of leaks or cracks.
• Repair or replace any damaged hoses or components.
• Reinstall all components securely and ensure there are no vacuum leaks.

3. Check and Clean the MAF Sensor

• Tools Required: MAF cleaner spray
• Remove the MAF sensor from the intake duct.
• Spray the MAF cleaner onto the sensor element and allow it to dry completely before reinstalling.
• Reattach the MAF sensor to its original position.

4. Test and Replace Fuel Injectors (if necessary)

• Tools Required: Fuel pressure gauge, injector cleaning kit (if cleaning is needed)
• Connect the fuel pressure gauge to the fuel rail and check the pressure against manufacturer specifications.
• If pressure is low, inspect the fuel filter and pump. Replace if necessary.
• If injectors are clogged, use the cleaning kit to clean them or replace them if they fail to function properly.

5. Replace Oxygen Sensors (if necessary)

• Tools Required: Oxygen sensor socket, torque wrench
• Remove the upstream oxygen sensor using the oxygen sensor socket.
• Install the new oxygen sensor, tightening it to the manufacturer's specified torque.
• Repeat for the downstream sensor if needed.

6. Clear Codes and Test Drive

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the codes.
• Test drive the vehicle under various conditions to ensure the issue is resolved.