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Repair Procedures: Inspection

  1. Turn ignition switch OFF and disconnect the negative (-)battery cable.
  2. Remove the fuel pump assembly.
  3. Check motor operation by fuel pump connector (A) connecting power(No. 2) and ground(No. 4)
    G12576678Courtesy of KIA MOTORS AMERICA, INC.
    Pin No. Description
    1 Fuel sender ground
    2 Fuel pressure sensor (FPS) signal input
    3 Fuel pressure sensor (FPS) ground (-)
    4 Ground
    5 CAN [Low]
    6 Fuel sender signal
    7 -
    8 Fuel pressure sensor (FPS) power supply(+5V)
    9 CAN [High]
    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 298 - 305 2.7
    1/2 84.5 - 88.5 23.4
    F 14 - 16 44.1