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Home >> Infiniti >> 2019 >> QX60 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (11 Of 17) >> DTC/Circuit Diagnosis >> DTC P119A: Fuel Rail Pressure Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P119A

FUEL PRESSURE SENSOR

(Fuel pressure sensor)

Diagnosis condition

  • Battery voltage: 8 V or more
  • Under engine start condition
  • Engine coolant temperature at previous ignition switch OFF: 65 deg.C (149 deg.F) or more
  • Engine coolant temperature: 35 deg.C (65 deg.F) or less
  • Temperature difference between engine coolant and intake air: Less than 6 deg.C (42 deg.F)
  • Fuel system monitor: Excessively RICH

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Fuel rail pressure is less than 1.0 MPa (10.2 kg/cm 2 , 145 psi) (calculated by ECM)

Diagnosis delay time

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P119B

FUEL PRESSURE SENSOR

(Fuel pressure sensor)

Diagnosis condition

  • Battery voltage: 8 V or more
  • Ignition switch: ON (engine stopped)
  • Engine coolant temperature at previous ignition switch OFF: 65 deg.C (149 deg.F) or more
  • Engine coolant temperature: 35 deg.C (65 deg.F) or less
  • Temperature difference between engine coolant and intake air: Less than 6 deg.C (42 deg.F)
  • Fuel system monitor: Excessively LEAN

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Fuel rail pressure is more than 1.5 MPa (15.3 kg/cm 2 , 217 psi) (calculated by ECM)

Diagnosis delay time

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