how to diagnose 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 all necessary tools and parts.
• Disconnect the battery to ensure safety.
• Allow the engine to cool down before beginning any work.

2. Replace Spark Plug

• Remove Spark Plug:
  • Use a spark plug socket and ratchet to remove the spark plug from cylinder 2.
• Install New Spark Plug:
  • Gap the new spark plug according to manufacturer specifications.
  • Install the new spark plug and torque it to the specified value (typically around 20-25 Nm).

3. Test and Replace Ignition Coil

• Remove Ignition Coil:
  • Unplug the electrical connector from the ignition coil.
  • Remove the ignition coil bolt and carefully pull out the ignition coil.
• Install New Ignition Coil:
  • Insert the new ignition coil into cylinder 2.
  • Secure it with the bolt and reconnect the electrical connector.

4. Fuel Injector Cleaning/Replacement

• Inspect Fuel Injector:
  • If the injector is suspected to be faulty, remove it using a fuel injector puller.
• Clean or Replace:
  • Clean the injector using a suitable fuel injector cleaner, or replace it with a new one.
• Reinstall Fuel Injector:
  • Ensure proper seating and reconnect any electrical connectors.

5. Reassemble and Test

• Reconnect the battery.
• Start the engine and check for any misfire codes using the OBD-II scanner.
• Take the vehicle for a test drive to ensure the issue is resolved.