I have installed new fuel pumps new filters. My 1992 240 GL has no current at the number 4 fuse. Jumping it out will still not start the car. My question is what under the hood will keep the relay from seeing current?

 

moved your thread to the 240 model board. "Forum Issues" are for, well, issues with the forum, not the car :-)

As to your question - did you pop out the relay and check voltages? there should be four spades, the two small ones are the circuit to energize the relay (and should get voltage with the key position) and the two large ones connect via the relay to provide the power to the pump. See if you have voltage across the two large spades then go from there.