I have a 90 cherokee, and the other day it decided not to start. I have found out that I am not getting spark so I changed the cap and rotor and I still didn't get spark. I was about to change the coil but I am not sure how to check and see if the coil is any good. Is their a way to do this without buying a new coil and just replacing it. I am getting power to the coil.