My f150 was running fine untill I shut it off and filled it with gas and then it wouldent start.I found that it will run on starting fluid so I know it has spark,and I have also found I have no power to the safty switch under the LH under kick panel or to the fuel pumps. I have swapped the relays around and checked the wiring under the relays and everything seems to be fine there.Also at the advise of a diffrent sight I jumped two pins on the test plug and still cant get power to the pumps.the pumps used to run for a second or two when the key was turned on but not anymore. I have a spare ecm and that made no diffrence. Im at a loss at where to go now. also there has been a mention of a fuseable link at the starter but I cant find anything like that.