Aftermarket fuel cell, fuel pump stopped working

ok put in a fuel cell this past week, added generic high PSi inline fuel pump, cut wires going to OEM unit in the tank, extended the pump wires and attached to new pump. Worked great, cycles the key a few times to prime the system and then started right up, 2 min later it stalled and no power going to the pump. Checked the QD above the rear axle and when I cycle the key it gets 4.2/4.3v, when I crank it over those same wires get 0v.



Any ideas? We got to this point at about 11:30pm sunday nigt so I said enough, cleaned up and went home.


Pump in use
http://www.jegs.com/i/JEGS/555/1590...8TSuKseKbht9LTaA3f0dc0DPL-d2l_sCSQaAsZh8P8HAQ

Any ideas?


Does the oem tank pump have a full 12v supplied to it or does the comp change it to regulate fuel?

Any ideas?


Does the oem tank pump have a full 12v supplied to it or does the comp change it to regulate fuel?

What year XJ?