My wifes v70 xc started acting up when starting, then wouldn't start at all 2day

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The car wouldn't start then finally did, but tried shutting off when applying gas. I found 2 bad vacuum lines and replaced, but wouldn't start again. Got it started and soon as u try applying gas it wanted to shut off. After a couple of minutes it shut off and now won't start. Turns over fine and full pumps kicking on and i have fuel at the rails. I have fire from the coil to the distributor cap but none coming out of the cap. It dis this in february so I purchased cap, rotor, plugs, & wires from rock auto and installed them. Has run like a top until now. Is because the cap/rotor is junk?? At wits end and didn't wanna change the cap/rotor again if thats not the problem, but can't figure out what else it could be. Our caravan did the same identical thing once amd it was the thin pick up coil under the cap, but this one doesn't have one of those that I can see. Like I said, i have gas and fire to from the coil to the cap (enough to give me a heck of a jolt anyways..lol) the nothing coming out of the cal to the plug wires. I'm gonna hook my computer up to it an see if I can get any codes turning the key to on. Any thoughts would be greatly appreciated and THANKS IN ADVANCE!!