how to fix P0301 misfire code in Renault Clio V (2019-Present)

Learn how to diagnose and fix P0301 cylinder 1 misfire in Renault Clio V. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather required tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, spark plug socket, torque wrench.
• Remove the ignition coil by unscrewing the bolts and disconnecting the electrical connector.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear or damage; replace with a new OEM spark plug if necessary.
• Torque the new spark plug to the manufacturer’s specifications (usually around 20 Nm).

3. Check and Replace Ignition Coil

• If the spark plug is in good condition, inspect the ignition coil.
• Tools Required: Socket set, multimeter.
• Use a multimeter to test the ignition coil for resistance and continuity. Replace if it shows abnormal readings.
• Install the new ignition coil, ensuring it is seated properly and reconnect the electrical connector.

4. Inspect and Test Fuel Injector

• If the ignition components are functioning correctly, check the fuel injector.
• Tools Required: Fuel injector test kit or noid light.
• Use the noid light to check if the injector is receiving the correct signal from the engine control unit (ECU). Replace if there is no signal or it is faulty.

5. Final Assembly

• Reconnect any components that were removed during the inspection and repair process.
• Reconnect the negative battery terminal.