how to fix P0174 code in Renault Clio V (2019-Present)

Solution

1. Preparation

• Gather tools and parts necessary for repair.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool before beginning work.

2. Inspect and Repair Air Intake System

• Tools Required: Screwdriver set, flashlight, vacuum gauge
• Check all intake hoses for cracks or signs of wear. Replace any damaged hoses.
• Ensure all clamps are secure and not leaking air.
• If any leaks are found, replace the affected components.

3. Clean or Replace MAF Sensor

• Tools Required: MAF sensor cleaner
• Remove the MAF sensor from the air intake system carefully.
• Spray the MAF sensor with MAF cleaner to remove any dirt or residue. Allow it to dry completely before reinstalling.
• If cleaning does not improve performance, replace the MAF sensor.

4. Check and Adjust Fuel Pressure

• Tools Required: Fuel pressure gauge
• Locate the fuel rail and connect the fuel pressure gauge.
• Turn the ignition key to the "ON" position (without starting the engine) to check the fuel pressure reading. Refer to the vehicle repair manual for the correct pressure specifications.
• If the pressure is low, inspect the fuel pump and fuel filter for issues and replace as necessary.

5. Inspect Fuel Injectors

• Tools Required: Injector cleaning kit or replacement injectors
• Remove the fuel injectors from the fuel rail.
• Use an injector cleaning kit to clean the injectors thoroughly. If they are damaged, replace them with new ones.
• Reinstall the cleaned or new injectors and ensure a proper seal.

6. Verify Vacuum Lines

• Tools Required: Vacuum gauge
• Inspect all vacuum lines for cracks or disconnections.
• Use a vacuum gauge to test for leaks in the system. Replace any faulty lines.