can anyone give me some advice on what to check next to find why my s1 randomly loses its spark. today it decided it didnt want to start, so i started checking that i have no broken wires following the wiring digram. everything seems fine. the coil is getting power when i crank it over, so i tried a spark plug in the lead and nothing. i assumed the next port of call would be the dizzy, but other than checking for continuity im not sure how i can test it.any ideas as i dont have a spare to try and dont really want to buy one to find thats not the problem. any advice much appreciated as im starting to lose patience with this car. its a random problem that seems to happen at the most inconvenient of times. one day it will start then the next day nothing, even if it hasnt been driven anywhere. cheers