I have already done a fault scan and got nothing. I tried to use my multi meter on the cap terminals, i got just over 100 volts on a couple of them then it started saying zero. Maybe it completely died as i was testing it because the car wont even start now and 100 volts im pretty sure is low. I would have thought that i should have got some sort of code if the ICM or coil had been dying.

Thanks for your help, think im going to try replace the whole dizzy