FAULTBASE
Error CodesASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Renault/Clio/V (2019-Present)/how to fix P0171 code in Renault Clio V (2019-Present)

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

Renault Clio V (2019-Present)

Error Codes
Severity: mediumDifficulty: mediumError Code: P01712-4 hours
3 min read
565 words

Problem Statement

Learn how to diagnose and fix P0171 engine too lean condition in Renault Clio V. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0171
Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Take caution when working with fuel systems to prevent leaks and fires.

Symptoms

  • •Check engine light illuminated
  • •Rough idle or stalling
  • •Decreased engine power during acceleration
  • •Poor fuel economy
  • •Increased emissions

Diagnostic Steps

  1. 1Scan the vehicle using an OBD-II scanner to confirm the P0171 code and check for any additional codes.
  2. 2Inspect the air intake system for vacuum leaks, ensuring all hoses and connections are secure.
  3. 3Check the fuel pressure with a fuel pressure gauge to ensure it meets the manufacturer's specifications.
  4. 4Examine the mass air flow (MAF) sensor for dirt or damage and test it for proper operation.
  5. 5Inspect the fuel injectors for clogs or malfunctions.
  6. 6Review the engine's exhaust system for any blockages or leaks.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the negative battery terminal to prevent electrical short circuits.
  • Allow the engine to cool down if it was recently running.

2. Inspect and Repair Air Intake System

  • Sub-steps:
    • Visually inspect all vacuum hoses and intake ducts for cracks or disconnections.
    • Replace any damaged hoses or gaskets with OEM parts.
    • Tighten any loose clamps on the intake system.

3. Clean or Replace MAF Sensor

  • Sub-steps:
    • Locate the MAF sensor near the air intake filter.
    • Carefully disconnect the electrical connector.
    • Remove the MAF sensor using a Torx screwdriver.
    • Clean the sensor with MAF cleaner spray or replace it if damaged.
    • Reinstall the sensor and reconnect the electrical connector.

4. Check and Adjust Fuel System

  • Sub-steps:
    • Connect a fuel pressure gauge to the fuel rail.
    • Turn the ignition to the "ON" position without starting the engine and check the fuel pressure.
    • Compare the reading to the manufacturer’s specification (usually around 3-4 bar for most vehicles).
    • If the pressure is low, check for a clogged fuel filter or failing fuel pump and replace if necessary.

5. Inspect and Clean Fuel Injectors

  • Sub-steps:
    • Remove the fuel rail to access the injectors.
    • Check for any signs of clogging or damage on each injector.
    • Use an injector cleaning kit to clean them or replace them if necessary.
    • Reinstall the fuel rail and reconnect all hoses.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Fuel pressure gauge
  • Torx screwdriver set
  • MAF cleaner spray
  • Injector cleaning kit

Parts Required

  • Replacement vacuum hoses
  • MAF sensor (if damaged)
  • Fuel filter (if clogged)
  • Fuel injectors (if malfunctioning)

Additional Information

Error CodeP0171
Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

4 items

Related Faults

  1. why does my Renault Clio V (2019-Present) air conditioning smell musty

    Learn how to diagnose and fix musty odors in the A/C system of your Renault Clio V. Step-by-step guide with symptoms, tools, and repair instructions.

    HVAC5 symptoms
  2. why is my Renault Clio V (2019-Present) air conditioning not working in summer

    Learn how to diagnose and fix air conditioning issues in Renault Clio V. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    HVAC6 symptoms
  3. why is my Renault Clio V (2019-Present) air conditioning not blowing cold?

    Learn how to diagnose and fix the AC not blowing cold in Renault Clio V. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    HVAC5 symptoms
  4. how to resolve P0300 random misfire code in Renault Clio V (2019-Present)?

    Learn how to diagnose and fix P0300 random misfire in Renault Clio V. Step-by-step guide with diagnostic procedures and repair instructions.

    P0300Engine5 symptoms
  5. how to fix B0090 code in Renault Clio V (2019-Present)

    Learn how to diagnose and fix B0090 airbag circuit issues in Renault Clio V. Step-by-step guide with diagnostic procedures and repair instructions.

    B0090Electrical5 symptoms
  6. how to fix P0421 code in Renault Clio V (2019-Present)

    Learn how to diagnose and fix P0421 exhaust system issue in Renault Clio V. Step-by-step guide with diagnostic procedures and repair instructions.

    P0421Exhaust System6 symptoms

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation