how to fix P0171 code in Renault Clio V (2019-Present)?

Solution

1. Preparation

• Gather tools and safety equipment.
• Disconnect the battery before starting repairs.
• Tools Required: OBD-II scanner, fuel pressure gauge, socket set, multimeter, cleaning supplies, torque wrench.

2. Inspect and Repair Air Intake System

• Sub-step 1: Remove the air intake duct to access the throttle body and MAF sensor.
• Sub-step 2: Check for cracks or loose connections. Replace any damaged components.
• Sub-step 3: Reinstall the air intake duct securely.

3. Clean or Replace the MAF Sensor

• Sub-step 1: Disconnect the electrical connector from the MAF sensor.
• Sub-step 2: Remove the MAF sensor using the appropriate socket.
• Sub-step 3: Clean the sensor with MAF cleaner spray (do not use any other type of cleaner).
• Sub-step 4: If cleaning does not resolve the issue, replace the MAF sensor with a new one and reinstall.

4. Check and Adjust Fuel System

• Sub-step 1: Connect the fuel pressure gauge to the fuel rail.
• Sub-step 2: Start the engine and check the fuel pressure against the manufacturer's specifications.
• Sub-step 3: If fuel pressure is low, inspect the fuel pump, fuel filter, and fuel injectors for issues and replace as necessary.

5. Inspect Vacuum Hoses

• Sub-step 1: Visually inspect all vacuum hoses connected to the intake manifold for signs of wear or cracks.
• Sub-step 2: Replace any damaged hoses and ensure all connections are tight.