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

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, fuel pressure gauge, multimeter, cleaning supplies.
• Safety Warnings: Disconnect the battery before working on electrical systems. Allow engine to cool before performing inspections.

2. Inspect and Repair Air Intake System

• Tools Required: Socket set, flashlight.
• Check all hoses connected to the air intake for cracks or loose connections.
• Inspect the intake manifold for any signs of vacuum leaks. If leaks are found, replace damaged hoses or gaskets.
• Tighten any loose clamps around the intake system.

3. Clean or Replace MAF Sensor

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

4. Verify Fuel System Functionality

• Tools Required: Fuel pressure gauge, socket set.
• Attach the fuel pressure gauge to the fuel rail and turn the ignition to the ON position (without starting the engine).
• Check if the fuel pressure is within the manufacturer's specifications. If not, replace the fuel pump or fuel filter as necessary.

5. Inspect and Test Oxygen Sensors

• Tools Required: Multimeter, socket set.
• Locate the oxygen sensors and check their electrical connections for corrosion or damage.
• Use a multimeter to test the sensors for proper voltage and response time. Replace if faulty.