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

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to ensure safety during diagnostics.

2. Inspect and Repair Air Intake System

• Tools Needed: Screwdriver set, hose clamps
• Check all hoses and connections for cracks or disconnections.
• Tighten any loose clamps and replace damaged hoses.
• Inspect the intake manifold gasket and replace if necessary.

3. Fuel System Inspection

• Tools Needed: Fuel pressure gauge
• Connect the fuel pressure gauge to the fuel rail.
• Turn the ignition to the "On" position (do not start) to check for proper fuel pressure.
• If pressure is low, inspect the fuel pump and filter; replace if needed.

4. MAF Sensor Cleaning/Replacement

• Tools Needed: MAF sensor cleaner
• Locate the MAF sensor in the air intake duct.
• Disconnect the MAF sensor wiring harness.
• Remove the MAF sensor and clean it gently with MAF cleaner. If damaged, replace it with a new sensor.

5. Fuel Injector Inspection

• Tools Needed: Injector cleaning kit (if cleaning), replacement injectors if faulty
• Check for proper operation of all fuel injectors.
• Clean injectors using the cleaning kit or replace injectors if they are clogged or malfunctioning.

6. Oxygen Sensor Testing

• Tools Needed: Multimeter
• Locate the oxygen sensors and disconnect them.
• Use a multimeter to test resistance and voltage output of the sensors.
• Replace any sensors that are out of specification or damaged.