how to fix P0301 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 necessary tools and parts.
• Ensure the vehicle is parked on a level surface.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the engine cover if applicable.
• Locate the spark plug in cylinder 1.
• Use the spark plug socket to remove the old spark plug.
• Inspect the spark plug for signs of carbon buildup or wear.
• Install the new spark plug, ensuring to torque it to the manufacturer’s specifications (typically around 20 Nm).
• Reinstall the engine cover.

3. Check and Replace Ignition Coil

• Tools Required: Socket set.
• Disconnect the electrical connector from the ignition coil.
• Remove the ignition coil from the spark plug well.
• Inspect the coil for cracks or damage.
• If it appears faulty, install a new ignition coil, ensuring it is seated properly.
• Reconnect the electrical connector.

4. Inspect Fuel Injector

• Tools Required: Fuel injector tester (optional).
• Disconnect the fuel injector connector from cylinder 1.
• Use a multimeter to check the resistance of the injector (should be within manufacturer specifications).
• If the injector is faulty, remove it using the appropriate tools, and install a new fuel injector.
• 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 observe the compression reading.
• If the compression is low, further investigation into engine internals may be necessary.