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Home >> Kia >> 2017 >> Sedona EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P050B: Cold Start Ignition Timing Performance >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

  1. Connect GDS to Data Link Cable (DLC).
  2. Warm up the engine to normal operating temperature.
  3. Check the "Current Data" about related DTC with GDS.

    Specification:  Refer to Fig 1

    Fig 1: Scantool Display - Synchronization Of CKPS & CMPS After Engine
    G12274161Courtesy of KIA MOTORS AMERICA, INC.
  4. If the parameter is not similar with shown data, measure related waveforms with GDS.
    Fig 2: Scantool Display - Normal Waveforms Of CKPS, CMPS-IN/EX At Engine Idle
    G12274162Courtesy of KIA MOTORS AMERICA, INC.

    A: CKPS & CMPS syncronization - There are about 8 teeth between the CKPS missing tooth and CMPS signal.

    B: CKPS & CMPS syncronization - There are about 1 tooth between the CKPS missing tooth and CMPS signal.

  5. Are the parameters 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, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair " procedure.

    NO 

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