2020 Kia Cadenza TechnologyFACTORY OEM SERVICE PROCEDURE

Description And Operation: Operation

G13403551Courtesy of KIA MOTORS AMERICA, INC.
  1. The ECM provides target fuel pressure information to the FPCM via CAN network.
  2. The FPS provides the FPCM with actual pressure information of the low pressure fuel line between the low and high pressure fuel pumps, and the FPCM forwards the information to the ECM. Also, the FPCM diagnoses faults in the FPCM, fuel pump motor and FPS and then provides the diagnostic information to the ECM.
  3. The FPCM compares the actual fuel pressure measured by the FPS with the target fuel pressure provided by the ECM and controls the voltage provided to the low pressure fuel pump motor. The FPCM keeps regulating fuel flow rate by controlling the low pressure fuel pump, depending on engine speed (rpm) and vehicle loads.
Factory Service Tools

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When to See a Mechanic

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

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

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