(replaced Fuel Pump, Fuel Filter, etc.)... that the Fuel Relay Switch that Advanced Auto Parts gave me was either a faulty or wrong part!...b/c after doing all these different test and replacing parts, I went back to step 1 (to check the Fuel Relay Switch)...but this time I just used a paper-clip to jump the circuit within the Fuel Relay instead of using the Fuel Relay Switch that Advanced Auto Parts gave me...and BOOM!...power to the FPCU and the pump started pumping!.... the new pump was a little loud, but it was getting power and pumping fuel!...but the car wouldn't start even with the Fuel Pump pumping while I had the paperclip jumping the circuit in the Fuel Pump Relay....but should it have started up just using the paperclip?...does anyone know?....or does it require the Fuel Relay Switch to crank up that I just ordered from NISSAN?