i have a 90 legend ls v6 that was going down the road and lost power like it was starving for fuel and went dead. had it towed to my house . when we got there we cranked it up and drove it off the roll back turned it off and it hasnt cranked since. I have replaced the main relay, fuel pressure regulator, computer , spark plugs, cap, rotor button, wires, and fuel pump and it still isnt cranking. anyone have any pointers or other options i should try ?