how to fix P0301 misfire code on 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 tools and parts needed for the repair.
• Disconnect the battery to ensure safety while working on electrical components.
• Allow the engine to cool before starting work.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench
• Remove the engine cover (if applicable).
• Disconnect the ignition coil connector from cylinder 1.
• Remove the ignition coil by unscrewing the bolts or clips.
• Remove the old spark plug using a spark plug socket.
• Check the gap on the new spark plug and adjust if necessary.
• Install the new spark plug and torque it to the manufacturer’s specifications (typically around 15-20 Nm).
• Reinstall the ignition coil and reconnect the connector.

3. Test or Replace Ignition Coil

• Tools Required: Multimeter, socket set
• Use a multimeter to test the resistance of the ignition coil. Compare with manufacturer specifications.
• If it is out of spec, replace the ignition coil with a new one.
• Reinstall the ignition coil as described in the previous step.

4. Inspect or Replace Fuel Injector

• Tools Required: Fuel injector puller (if necessary), socket set
• Disconnect the fuel injector connector.
• Remove the fuel rail if required to access the injector.
• Inspect the injector for clogs or damage.
• If necessary, replace the fuel injector with a new one.
• Reinstall the fuel rail and reconnect the fuel injector connector.

5. Perform Compression Test

• Tools Required: Compression tester
• Remove the spark plug from cylinder 1.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading.
• Compare the reading with manufacturer specifications. If low, further inspection of the engine may be needed.