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Home >> Infiniti >> 2004 >> G35 Base, 2D Coupe, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2004 - Engine Control System - Coupe >> DTC P0451: EVAP Control System Pressure Sensor >> Diagnostic Procedure >> 1. Check Ground Connections

1. Check Ground Connections

  1. Turn ignition switch OFF.
  2. Loosen and retighten two ground screws on the body. See Figure. Refer to "Ground Inspection ".

OK or NG 

OK: GO TO 2

NG: Repair or replace ground connections.

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