how to fix P0302 misfire code in Renault Clio V (2019-Present)

Learn how to diagnose and fix P0302 cylinder 2 misfire in Renault Clio V. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather required tools and parts. Ensure the vehicle is parked on a level surface.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, gap gauge.
• Remove the engine cover if necessary.
• Remove the spark plug from cylinder 2 using a socket.
• Inspect the spark plug for wear or damage.
• If worn, replace it with a new spark plug of the same specifications.
• Ensure the gap is set to manufacturer specifications (typically around 0.8mm).
• Re-install the spark plug and torque it to manufacturer's specifications (usually around 20 Nm).

3. Check and Replace Ignition Coil

• Tools Required: Socket set, multimeter.
• Disconnect the ignition coil connector for cylinder 2.
• Remove the ignition coil using a socket.
• Test the ignition coil with a multimeter to ensure it meets specifications (consult service manual for specific resistance values).
• If faulty, replace the ignition coil with a new one.
• Reinstall the coil and reconnect the electrical connector.

4. Inspect and Replace Fuel Injector

• Tools Required: Fuel injector removal tool, socket set, safety glasses.
• Depressurize the fuel system by removing the fuel pump relay and cranking the engine.
• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel rail if necessary to access the injector.
• Carefully remove the fuel injector and inspect it for clogs or damage.
• If required, replace the injector with a new one as specified by the manufacturer.
• Reassemble the fuel rail and reconnect all electrical connectors.

5. Perform Compression Test

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine to take a reading.
• Compare the reading to the manufacturer's specifications (typically around 10-12 bar).
• If compression is low, further investigation into valve seals or piston rings may be necessary.