i am not sure on how to check and see if my coil packs are working. cause at the moment my car will turn over but will not fire and i have just put new spark plugs in and it still wont start so i am thinking it might be the coils. When i took the old spark plugs out 3 of them looked like they had not been working. i am pretty sure is a spark issue cause it is getting plenty of fuel. Can you use a multi metre, if so how? Not sure as what else it could be, this is my first turbo car so i am just learning so any info will be good. Thanks