why does my Renault Clio V (2019-Present) check engine light keep coming on

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, multimeter.
• Ensure the vehicle is parked on a level surface and the engine is cool before beginning work.
• Disconnect the negative battery terminal to reset the system.

2. Addressing Error Codes

1. Retrieve Error Codes:
   • Connect the OBD-II scanner to the vehicle’s diagnostic port.
   • Record any stored error codes and their definitions.
2. Resolve Specific Issues:
   • If a misfire code is present, check spark plugs and ignition coils for wear or damage. Replace as necessary.
   • For emissions-related codes, inspect the catalytic converter and oxygen sensors. Replace faulty components.
   • If a vacuum leak is indicated, inspect hoses and intake manifold for cracks or disconnections.

3. Inspecting and Replacing Components

1. Gas Cap Inspection:
   • Ensure the gas cap is tightened properly. If it’s damaged, replace it with a new one.
2. Air Filter Replacement:
   • Remove the air filter housing cover using the socket set.
   • Take out the old air filter and replace it with a new one, ensuring a snug fit.
3. Oxygen Sensor Replacement (if applicable):
   • Locate the oxygen sensor using the vehicle’s service manual.
   • Disconnect the sensor’s electrical connector and unscrew it using a socket wrench.
   • Install the new oxygen sensor and reconnect the electrical connector.