Like title states, I last drove my dart couple weeks ago, went to pull it out yesterday and no fire. Usually starts right up. I have fuel and no spark. I have done some checking and just need to verify what I have so far. I am leaning toward the ECU, I don't have a spare handy to throw in it yet. I put my spare ballast in right away but did not help. I have 12 volts to #1 pin to ECU, I have 11.5 or so volts to + side of coil and the same on the - side of coil with key in run position. That is what makes me think ECU, shouldn't the - side be lower than the + side with key in run position. Next step is to check voltage while cranking on - and + side of coil when I have a little help. Any thing else to check besides grounds and reluctor gap looked good but need to double check gap. It has ran great for 10 plus years with same set up and all of a sudden no spark?