Engine Mechanical problem
2003 Nissan Sentra 4 cyl Front Wheel Drive Automatic 103,00 miles
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We purchased a new fuel pressure regulator from the nissan dealership. He gave us a diagram as to where it should be. We cannot find it under the hood. Can it be near the gas tank

is it a electronic fuel injected engine? if so its on the fuel rail, if its throttel body injected it will be near the base on the throttle body unit.