LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0171 To P0463 >> DTC P0451: EVAP Control System Pressure Sensor >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P0451 EVAP SYS PRES SEN (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.) (Sensor power supply 2 circuit is open or shorted.)
  • EVAP control system pressure sensor
  • Each sensor, connected with sensor power supply 2 circuit