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Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (2 Of 5) >> DTC/Circuit Diagnosis >> DTC P0190, P0192, P0193: FRP Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0190

00

FUEL PRES SEN/CIRC

(Fuel Rail Pressure Sensor Circuit Bank 1)

Diagnosis condition

Engine running at idle

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Signal voltage from the fuel rail pressure sensor remains at more than 4.84 V / less than 0.2 V

Diagnosis delay time

5 seconds or more

P0192

00

FUEL PRES SEN/CIRC

(Fuel Rail Pressure Sensor Circuit Low Bank 1)

Diagnosis condition

Engine running at idle

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Signal voltage from the fuel rail pressure sensor remains at less than 0.37 V

Diagnosis delay time

5 seconds or more

P0193

00

FUEL PRES SEN/CIRC

(Fuel Rail Pressure Sensor Circuit High Bank 1)

Diagnosis condition

Engine running at idle

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Signal voltage from the fuel rail pressure sensor remains at more than 4.06 V

Diagnosis delay time

5 seconds or more