My clio has decided to play up and engine management light has come on and i found the above fault code possible multiple misfire. Is this a simple fix? do i just check the leads for any issues or should i be looking at other possible problems. The car sounds very noisy its a petrol but sounds like a diesel.

Probably the coil pack. They're not expensive, but don't go for a cheapo Ebay one.

The crankshaft sensors are also a common fault on those. It's worth going a little further into the code if you are able to to identify the issue