LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2015 >> Forte5 SX, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) - 1.6L >> 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. IG KEY "OFF".
  2. Disconnect FPR connector.
  3. IG KEY "ON" & ENG "OFF".
  4. Measure the voltage between FPR open, FPR close terminal of FPR harness connector and chassis ground.

    Specification: 

    FPR open Terminal: Approx. 0V

    FPR close Terminal: Approx. 0.7V

  5. Is the measured voltage within specification?

    YES 

    NO