I have a 1988 3.9 2wd dakota it cranks over good but will not start, I dont think its getting spark. i replaced coil, distributor cap, rotor button, plugs, & wires. not sure really what to do. I did try hooking a test light to positive battery post and checking both sides of coil and both light up. I've also checked with voltage meter both sides and only get like 0.30 volts d/c. Any help is great thanks.