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Home >> Hyundai >> 2007 >> Entourage SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P0451 EVAP. Emission System-Pressure Sensor Range / Performance >> Component Inspection
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Component Inspection

  1. IG "OFF" & connect scantool.
  2. ENG "ON" and Race the accelerator pedal at idle and Monitor "FTPS" parameter is changing while PCSV is operating on the service data.

    Specification : Fuel Tank Pressure is O.K if pressure changes more than 0.2 while racing accelerator pedal.

    Fig 1: Scantool Display - FUEL TANK PRESSURE
    G05322087Courtesy of HYUNDAI MOTOR CO.
  3. Does the FTPS change while racing the accelerator pedal at idle ?

    YES 

    NO 

    • Substitute with a known - good FTPS and check for proper operation. If the problem is corrected, replace FTPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.