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Home >> Nissan-Datsun >> 2021 >> Altima S >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Removal And Installation >> Fuel Level Sensor Unit (Sub) >> Inspection
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Fuel Level Sensor Unit (Sub): Inspection

  1. Place ignition switch in the "ON" position (with engine stopped), then check connections for leaks by applying fuel pressure to fuel piping.
  2. Start engine. Then let it idle and check that there are no fuel leaks at the fuel system connections.