That you so much for the reply and confirming that the fuel pressure should be along in line with the FSM. I am gonna have my guy pull the pump assembly and see if it didn't get drilled; if it did get drilled then maybe when the installer drilled it they didn't clean up well and maybe the regulator sucked in some debris. I believe the high fuel pressure is giving me my misfires at idle (putting too much fuel in the cylinders), especially on cold starts, as well as causing the idle to jump around. I want to get the idle to where it should be (hopefully it does not mean buying an entire pump assembly from Nissan just for the regulator) and then hope that my injectors did not get damaged from the excess pressure. I see my fuel pressure drop to zero within an hour and half (my truck will have at some pressure for days) so am also thinking my injectors may be leaking fuel into the cylinders causing those cold start misfires, hopefully not as I don't want to spend that kind of money on a car I want to dump. But then again, maybe the Nissan will drop off pressure faster than my truck, I don't know this car well enough and not near as much information out there for it like there is for my truck.
Oh yeah, and I verified the fuel across three separate gauges.
