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Home >> Nissan-Datsun >> 2009 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0447 To P1168 >> DTC P0451 EVAP Control System Pressure Sensor >> On Board Diagnosis Logic
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On Board Diagnosis Logic

NOTE: If DTC P0451 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to DTC P0643 SENSOR POWER SUPPLY .
DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0451 0451 EVAP control system pressure sensor performance ECM detects a sloshing signal from the EVAP control system pressure sensor
  • Harness or connectors
  • EVAP control system pressure sensor