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Home >> Nissan-Datsun >> 1999 >> Sentra SE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Fuel System >> Fuel Delivery >> Fuel Pump
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Fuel Pump

Disconnect fuel pump harness connector. For location, see FUEL PUMP HARNESS CONNECTOR LOCATIONS  table. On Frontier 4-cylinder, measure resistance between fuel pump connector terminals P1 and P2. See Fig 1. On Quest, measure resistance between fuel pump connector terminals No. 2 and 3. See Fig 2. On all models except Frontier 4-cylinder and Quest, measure resistance between fuel pump 2-pin connector terminals. On all models, resistance should be 0.2-5.0 ohms at 77°F (25°C). Replace fuel pump if resistance is not as specified.

FUEL PUMP HARNESS CONNECTOR LOCATIONS

Application Location
Altima, Maxima, Pathfinder, QX4 & Sentra Under Rear Seat
Frontier Top Of Fuel Tank
Quest Behind Fuel Tank
Fig 1: Checking Fuel Pump (Frontier 4-Cylinder)
G99B50451Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Checking Fuel Pump (Quest)
G99D50453Courtesy of NISSAN MOTOR CO., U.S.A.
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