my car died on me a few weeks back and i haven't had time to look at it. got round to it today and it seems is misfiring, its only sparking on cylinders 2 and 3. i pulled each lead while the engine was running and there is a strong spark on 2 and 3 and nothing on 1 and 4. i have put new plugs in and the leads seem ok, would this mean adead coil? or could there be a fault causing the lack of spark on these 2?

help would be great, and also i would like to know if the coil on the RS is unique, or is it the same as any other zetec focus?

cheers