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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Control System Diagnosis - 1.6L (2 Of 3) (Except HEV)) >> DTC P0451: Evaporative Emission System-Pressure Sensor Range/Performance >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

WARNING: This page is about a different variant/trim than selected.
  1. Connect GDS to DLC (Data Link Cable).
  2. Warm up the engine to normal operating temperature.
  3. Monitor "Fuel Tank Pressure sensor" parameter on the "Current Data" with GDS.
    Fig 1: Scantool Display - Fuel Tank Pressure Sensor Parameter On Current Data
    G11991251Courtesy of HYUNDAI MOTOR AMERICA
  4. Are the parameters displayed correctly?

    YES 

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

    NO