Hello people, i think it's safe to say that there is something wrong with my car. It's making dodgy spluttering noises when i rev it. At first i thought i just had water in the engine as i had just washed it but i got a friend of mine to have a look and he said it's the Cat. If it is, what route do i take? I really need something doing today because it is TOTALLY eating my petrol! - and i NEED to drive it.