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Home >> Hyundai >> 2007 >> Sonata SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3.3L) (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P0451 EVAP. Emission System-Pressure Sensor Range / Performance >> Monitor SCANTOOL Data

Monitor SCANTOOL Data

  1. IG "OFF" & connect scantool.
  2. ENG "ON" and warm-up the engine to normal operating temperature.
  3. Monitor "FTPS" parameter on the service data.
    Fig 1: Diagnosis Function Screen Display - Fuel Tank Pressure
    G04891443Courtesy of HYUNDAI MOTOR CO.
  4. Is the "FTPS" data displayed correctly ?

    YES 

    • Fault is intermittent caused by poor contact in the sensor' s and/or PCM' s connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

    NO 

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