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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to avoid any electrical shorts.

2. Inspect and Repair Air Intake System

• Tools Required: Socket set, screwdrivers, vacuum gauge
• Inspect air intake hoses and connections for any signs of wear or leaks.
• If leaks are found, replace the damaged hoses.
• Reattach all connections securely.

3. Test and Clean MAF Sensor

• Tools Required: MAF sensor cleaner or isopropyl alcohol, soft cloth
• Remove the MAF sensor from the air intake duct.
• Spray the MAF sensor cleaning solution onto the sensor elements and let it dry completely.
• Reinstall the MAF sensor and ensure it is properly secured.

4. Check and Adjust Fuel Pressure

• Tools Required: Fuel pressure gauge
• Connect the fuel pressure gauge to the fuel rail.
• Turn the ignition to the "ON" position without starting the engine and check the pressure reading.
• If the pressure is below specifications, inspect or replace the fuel pump and/or fuel filter.

5. Inspect Vacuum Lines

• Tools Required: Visual inspection tools
• Conduct a visual inspection of all vacuum lines connected to the intake manifold.
• Replace any cracked or damaged vacuum lines.

6. Test Fuel Injectors

• Tools Required: Multimeter, fuel injector cleaner
• Use a multimeter to test the resistance of the fuel injectors.
• If they are out of specification, replace the faulty injectors.
• Clean the injectors using a fuel injector cleaning kit if they are clogged.