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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 95 (Engine Control System Diagnosis - 1.6L (1 Of 3) - Optima (Except HEV)) >> DTC P0193: Fuel Rail Pressure Sensor Circuit High Input >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.

■ Check FRPS performance 

  1. Ignition "OFF"
  2. Connect CH A probe to FRPS signal terminal (Pin No. 2) of FRPS connector and CH B probe to TPS1 signal terminal (Pin No. 6) of FRPS connector.
  3. Warm up the engine to normal operating temperature.
  4. Measure signal waveform of FRPS and TPS1 together by stepping on and off the accelerator pedal.

    Specification:  Refer to Signal Waveform & Data below.

    Fig 1: Screen Display - FRPS And TPS1 Signal Waveform (Acceleration)
    G11833405Courtesy of KIA MOTORS AMERICA, INC.

■ Confirm Part Inspection 

  1. Does the RPS operate properly? (Check variation)

    YES 

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If problem still occurs, replace FRPS and then go to "Component Inspection" procedure below.