FixVault

Diagnostic Procedure

Fig 1: DTC P0451: EVAP Fuel Tank Pressure Sensor Circuit Performance (Steps 1-7)
G00255587Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0451: EVAP Fuel Tank Pressure Sensor Circuit Performance (Steps 8-14)
G00255588Courtesy of GENERAL MOTORS CORP.