Nissan Fuel Pump relay or computer problem

[versa2424]

I have a fuel pump problem on my nissan. Car cranks but doesnt turn on and starting fluid at the intake turns it on for a couple seconds but dies. Also fuel pump is brand new as that was a misdiagnosis since my fuel pump does not even prime.

So I noticed when I put the dmm on the fuel pump harness brown wire at the pump with it not connected to the pump I get 11.5 volts with key on.

However, when I connect the fuel pump harness to the fuel pump then check the voltage at the brown wire key on I get 1.5 volts, why?

So today I went to the ipdm and tested the pin wire 1 which is a green or red wire and I get 12v constant but when I checked pin 36 brown wire which is the wire that primes the pump with key on I got absolutely no voltage.

So at the ipdm pin 36 brown wire I hooked a positive wire from the battery which with those 12v I finally heard the pump prime and the car turned on but when I took that wire off back to no priming and non starting.

Does this mean my ipdm since the fuel pump relay on mine is internal is bad?

[2_Liter_Turbo]

I think you are thinking correctly, sounds like a typical fuel pump relay issue.