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 necessary tools and parts.
• Disconnect the vehicle battery to ensure safety.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

1. Remove the engine cover (if applicable) to access the ignition components.
2. Use a spark plug socket to remove the spark plug from cylinder 1.
3. Inspect the spark plug for signs of wear, damage, or fouling. Replace if necessary.
4. Gap the new spark plug according to manufacturer specifications.
5. Install the new spark plug and torque it to the manufacturer’s specifications (typically around 15-20 Nm).

3. Check and Replace Ignition Coil

1. Disconnect the harness connector from the ignition coil on cylinder 1.
2. Remove the ignition coil using a socket or ratchet.
3. Inspect the coil for cracks or damage. If damaged, replace with a new ignition coil.
4. Reinstall the ignition coil and reconnect the harness securely.

4. Test Fuel Injector

1. Disconnect the fuel injector connector for cylinder 1.
2. Using a multimeter, check for proper resistance (typically 12-16 Ohms) at the injector terminals.
3. If the injector is faulty, remove it using a wrench and replace it with a new injector.
4. Reconnect the injector connector.

5. Compression Test

1. Remove the spark plug from cylinder 1 again for easier access.
2. Insert a compression gauge into the spark plug hole.
3. Crank the engine and record the compression reading. It should be within the manufacturer’s specified range (typically around 180-200 psi).
4. If compression is low, further diagnostic may be needed for internal engine issues.