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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 88 (Fuel Delivery System - 1.6L - Optima (Except HEV)) >> Low Pressure Fuel Pump >> Repair Procedures >> Inspection >> [Fuel Sender]

[Fuel Sender]

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  1. Turn the ignition switch OFF, and then remove battery (-) cable.
  2. Remove the fuel pump assembly.
  3. Using an ohmmeter, measure the resistance between terminals 1 and 6 of sender connector (A) at each float level.
    Fig 1: Measuring Resistance Between Terminals 1 And 6 Of Sender Connector Using Ohmmeter
    G11823584Courtesy of KIA MOTORS AMERICA, INC.
    Pin No. Description
    1 Fuel sender ground
    2 Fuel pressure sensor (FPS) signal input
    3 CAN [High]
    4 Fuel pressure sensor (FPS) power supply (+5V)
    5 Fuel pressure sensor (FPS) ground (-)
    6 Fuel sender signal
    7 -
    8 CAN [Low]
    9 Ground
    10 Battery power (B+)
  4. Also check that the resistance changes smoothly when the float is moved from "E" to "F".
    Position Resistance (Ω) Capacity ( )
    E 297 - 303 3
    1/2 80 - 84 35.7
    F 14 - 16 68.6