2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Fuel Level Sensor Unit Check

WARNING: This page is about a different car, the 2005 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.

For removal, refer to "REMOVAL AND INSTALLATION ".

Check Fuel Level Sensor Unit and Fuel PumpΒ 

Check resistance between fuel level sensor unit and fuel pump connector terminals 2 and 5.

TERMINALS RESISTANCE CHART

Terminals Float position mm (in) Resistance value Ξ© (Approx.)
2 5 (1) Empty 25.86 (1.02) 81.66
(2) Full 254.6 (10.02) 6.98
(1) and
(2) When float rod is in contact with stopper.
Fig 1: Checking Resistance Between Fuel Level Sensor Unit And Fuel Pump Connector Terminals 2 And 5
G03610190Courtesy of NISSAN MOTOR CO., U.S.A.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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