LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2017 >> Soul Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (1 Of 3) >> DTC P0091: Fuel Pressure Regulator 1 Control Circuit Low >> Wiring Inspection >> Control Circuit Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Control Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect FPR connector.
  3. Ignition "ON" and Engine "OFF".
  4. Measure voltage between Pin No. 1 (-), Pin No. 2 (+) terminal of FPR harness connector and chassis ground.

    Specification: 

    FPR (-) Terminal: Approx. 0V

    FPR (+) Terminal: Approx. 0.8V

  5. Ignition OFF & Disconnect PCM connector.
  6. Measure resistance between Pin No. 1 (-), Pin No. 2 (+) terminal of the FPR.

    Specification: 

  7. Is the measured Value within specification?

    YES 

    NO