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Home >> Hyundai >> 2011 >> Equus Ultimate >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) >> DTC P0300: Random/Multiple Cylinder Misfire Detected >> Scantool Diagnostics >> Monitor GDS Data
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Monitor GDS Data

  1. Connect GDS to Data Link Connector (DLC).
  2. Warm up the engine to normal operating temperature.
  3. Monitor the "Parameters related to Ignition and Misfire" on the GDS.
    Fig 1: Screen Display - Ignition And Misfire Parameters (Current Data)
    G07306110Courtesy of HYUNDAI MOTOR CO.
    Fig 2: Screen Display - Ignition And Misfire Parameters (Current Data)
    G07306111Courtesy of HYUNDAI MOTOR CO.
    Fig 3: Normal Data Of Misfire Counter At Idle
    G07306112Courtesy of HYUNDAI MOTOR CO.
  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 

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