Hi, i have a truck w/ no spark at plug, neg side of coil not "breaking fire", nor do i have signal at the tach line. I have swapped out dist and igniter to no avail. According to schematic on connector "C" term 30 violet (NE -) to dist. 31 pink (NE +) to dist. 32 grn/blk (IGF) power from igniter. 33 red/blk (IGT/IG1)-this should control (neg) to dist (neg coil side), if i am right. Does anyone think i have bad ECS? P.S. My wires dont match that of schematic. Any help would be greatly appreciated.