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Home >> Hyundai >> 2014 >> Accent GLS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) >> DTC P0087: Fuel Rail System Pressure-Too Low >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

  1. Connect GDS to DLC (Data Link Cable).
  2. Warm up the engine to normal operating temperature.
  3. Monitor "FPS" parameter on the "Current Data"  with GDS.
    Fig 1: Display - Change Condition Of Acceleration And Deceleration
    G08802012Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Display - Angle To Close FPR And Angle To Open FPR Under Idle State
    G08802013Courtesy of HYUNDAI MOTOR AMERICA

    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's connector or was repaired and ECM 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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