no spark, seldom starts, then stops, 93 eclipse

Was up til 5am reading through these forums. Can't find my answer. I have 93 2.0 non Turbo eclipse, ran fine for a year, started having trouble, replaced fuel filter, ran fine, then began the nonspark problem. I could occasionally make it start by pulling neg bat terminal and replacing it. Twice I got it to start by fulling fuses and putting them back. Now, nothing. I have voltage to my coil pack or whatever my plug wires are coming from, but nothing coming out the other side. I've been told it can be crank post sensor, but then I've been told not if I'm getting voltage to ignition unit. And then, there is the occasional start, out of nowhere, that has lasted anywhere from 2 days to 2 minutes. Please help. Thank you - Sean Michael

Could it be a short to ground between my CAS and ecm? Its gotten progressively worse, like it rarely starts, and only after I do a number of fumbling around with things, but when it first started, I could pull the key from the ignition, put it back in, and vroom vroom. My engine shakes, as the front mount is gone bye bye, so it could have gotten worse? I so, where? If not, what?