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Home >> Kia >> 2019 >> Soul Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (1 Of 3) >> DTC P0133: O2 Sensor Circuit Slow Response (Bank 1/Sensor 1) >> Component Inspection >> HO2S Upstream (S1) Visual Inspection

HO2S Upstream (S1) Visual Inspection

  1. Ignition "OFF" and disconnect HO2S upstream (S1) connector.
  2. Inspect HO2S upstream (S1) for contamination or damage caused by foreign materials.