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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (Engine Control System Diagnosis - 1.6L (1 Of 3) (Except HEV)) >> DTC P008B: Low Pressure Fuel Pressure - Too High >> 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 "Low Pressure Fuel Pressure" parameter on the "Current Data" with GDS.
    Fig 1: Screen Display - Check Change Under Condition Of Acceleration And Deceleration
    G11990423Courtesy of HYUNDAI MOTOR AMERICA

    FigureCheck the 'Angle to Close FPR' and 'Angle to Open FPR' under idle state

    Examine the fuel pressure checking the change of rail pressure and 'Angle to Close FPR' and 'Angle to Open FPR'.

  4. Is the "FPS" parameter displayed correctly?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or ECM 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 then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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