FixVault

DTC Detection Logic

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0191

Fuel rail pressure sensor

Fuel rail pressure remains at more than 14.5 MPa (147.9 kg/cm 2 , 2102.5 psi) for 0.2 seconds or more during ignition ON.

  • Harness or connectors

    (Fuel rail pressure sensor circuit is open or shorted.)

  • Fuel rail pressure sensor
  • Sensor power supply 3