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Home >> Infiniti >> 2022 >> QX60 Autograph, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (4 Of 6) >> DTC/Circuit Diagnosis >> DTC P0451: EVAP Control System Pressure Sensor >> DTC Description >> DTC Detection Logic

DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0451

00

EVAP SYS PRES SEN

(Evaporative emission system pressure sensor/switch range/ performance)

Diagnosis condition

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Signal (terminal)

EVAP control system pressure sensor signal

Threshold

ECM detects a state that the pressure difference remains the threshold value or more for continuously for 5 seconds or more under the condition that the pressure of the EVAP control system pressure sensor and that of the ECM (built-in barometric pressure sensor) are equal.

Diagnosis delay time

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