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Home >> Infiniti >> 2008 >> G37 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - G37 Coupe - DTC P0300 Through P1091 >> P0451 EVAP Control System Pressure Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P0451 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 circuit is shorted.)

    [CKP sensor (POS) circuit is shorted.]

    (APP sensor 2 circuit is shorted.)

    (Refrigerant pressure sensor circuit is shorted.)

    (Brake booster pressure sensor circuit is shorted)

  • EVAP control system pressure sensor
  • Crankshaft position sensor (POS)
  • Accelerator pedal position sensor
  • Refrigerant pressure sensor
  • Brake booster pressure sensor