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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (1 Of 4)) >> DTC/Circuit Diagnosis >> P0191 FRP Sensor >> DTC Description >> PR25DD engine >> DTC Detection Logic

DTC Detection Logic

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DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0191

00

FRP SENSOR A

(Fuel rail pressure sensor "A" circuit range/performance)

Diagnosis condition

Ignition switch ON

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Fuel rail pressure remains at more than 14.5 MPa (147.9 kg/cm 2 , 21025 psi)

Diagnosis delay time

0.2 seconds or more