I have a 2000 sentra with 1.8L. So far I have put new fuel pump and regulator. The car will start if the tank is uphill and more than 1/2 tank. It will acclerate down the road at 1/3 to 1/2 throttle but no more. It isn't getting fuel. I can crimp off the return line and it runs better. You can hear the pump run when the switch is first turned on for 2-3 sec. I have not found a fuel pump relay. Several mechanics have pondered over without solving. If you have any idea I will pay $100.00 to someone that can help me fix. E-Mail me direct at
clhnbitz@yahoo.com. E-Mail with any kind of diagnostic ?'s.. I swear $$$$ to one who can help. Please!!!!