why does my Renault Clio V (2019-Present) have a check engine light and a P0302 code?

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

• Tools Required: OBD-II scanner, socket set, torque wrench, compression tester, multimeter
• Ensure the vehicle is parked on a flat surface and the engine is cool before starting.
• Disconnect the negative battery terminal for safety.

2. Replace Spark Plug

• Remove the engine cover if applicable.
• Use a socket set to remove the spark plug from cylinder 2.
• Inspect the old spark plug for wear or fouling; determine if it needs replacement.
• Install a new spark plug, torquing it to the manufacturer’s specifications (typically around 12-15 Nm).

3. Check and Replace Ignition Coil

• Remove the ignition coil for cylinder 2 using the socket set.
• Inspect the ignition coil for cracks or damage. Test the coil with a multimeter for proper resistance (consult the service manual for specifications).
• If faulty, install a new ignition coil. Ensure it is seated properly and reconnect any wiring.

4. Inspect and Test Fuel Injector

• Disconnect the fuel injector connector for cylinder 2.
• Use a multimeter to test the injector's resistance (refer to service manual for specs).
• If the injector is faulty, remove it and replace with a new one. Ensure proper seating and reconnect.

5. Compression Test

• Remove the spark plug from cylinder 2 and install the compression tester.
• Crank the engine and record the compression reading. Compare to manufacturer specifications (typically around 10-14 bar).
• If compression is low, further investigation into potential internal engine issues may be required (e.g., valve problems, head gasket failure).