1986 Jaguar XJ6 Won't start. rolls over but that is it. replaced fuel pump relay and fuel pump. seems to have fuel at pump inlet, nothing comes out the outlet. I am lost. car ran out of gas before this all started. filled tanks, nothing after that

If your fuel pump and relay are new, how about your fuel filter, if your fuel pump is working but no fuel turns out, check fuel pump polarity, if ok, there will be a clogging in fuel lines, take a high pressure air and plug it to fuel outlet in fuel lines test port, allow air to go back up to fuel tank and observe if the air goes, if not, check or change fuel line, if the air goes to tank, direct your fuel relay pin 30 and 87 and check if the fuel runs to the injectors, if not, change a good fuel pump