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Home >> Infiniti >> 2021 >> Q50 Signature Edition, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 6) >> Engine (ECM) >> P0452 EVAP Control System Pressure Sensor >> DTC Description >> VR30DDTT engine >> DTC Detection Logic

DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0452

EVAP SYS PRES SEN

(Evaporative emission system pressure sensor/switch low)

An excessively low voltage from the sensor is sent to ECM.