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Home >> Genesis >> 2019 >> G80 3.8, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 3.8L (3 Of 3) >> DTC P2273: O2 Sensor Signal Stuck Rich (Bank 2 Sensor 2) >> Component Inspection >> Check The Signal Waveform Of HO2S

Check The Signal Waveform Of HO2S

  1. IG "OFF" and connect HO2S connector.
  2. Start Engine
  3. With engine at operating temperature, monitor signal waveform of HO2S with GDS.
    G12651922Courtesy of HYUNDAI MOTOR AMERICA
    G12651923Courtesy of HYUNDAI MOTOR AMERICA
  4. Is the sensor switching properly?

    YES 

    • Substitute with a known - good ECM (PCM) and check for proper operation. If the problem is corrected, replace ECM (PCM) and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Substitute with a known - good HO2S and check for proper operation. If the problem is corrected, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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