this may not be any help, did you check the wiring harness from the distributor to the firewall where it goes through to the ecu. maybe you should check for continuity to the ecu from pin 1 (red) to pin 4 on the ecu, and then from pin 2 (blue) tto pin 24 on the ecu. maybe you have a broken wire? Also check the red and white wire on the fuel pump relay, that is the lead from the power stage, if your relay is somehow grounding that lead there will be no spark or fuel pump. i have seen a couple of relays cause this.