See if when you apply power to each pump, that they spin and sound OK. You could use a battery charger, or a temporary wire from your battery's positive side to each pumps + side, doing so one pump at a time. Have your key in the run position for the test. If they seem OK, install a test fuel pressure gauge to the valve on the fuel rail, cycle the key to run position a few times, take note of the final reading. If they don't spin with the key, but do with the auxiliary power source, then you will need to examine the circuit, to isolate the problem. If with auxiliary power, one or both fail the test, examine/repair the circuit, and/or replace the pump if at fault.