problem: turn on key, no fuel pump turn on

attempts: two new main relays, i have three different ecus, so its not that, i have rewired the car THREE times, ( the complete car, not just the engine, yes i know it sounds nuts, but i did) when i run wires to the pump it turns on, all the wires to the main relay are getting what they are supposed to.i have checked ever ground on the car ten times. is there a sensor on the car or in the distributor that would not allow the pump to kick on???

i recently installed a b18c witha b16 head, all obd0 the motor seemed to miss when it got warm, so i wonder if it had something to do with the great distributor king distributor. any ideas anyone???

 

Check this fuse with a meter,or replace it with a known good fuse:
if that is good,
Have you ever replaced the electrical portion of the ignition
switch?