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Home >> Kia >> 2021 >> Soul X Line >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.0L (4 Of 6) >> DTC P0420-00: Catalyst System Efficiency Below Threshold (Bank 1) >> System Inspection >> O2 Sensor Inspection
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O2 Sensor Inspection

Inspection Condition (+) Probe (-) Probe Reference
Connector Terminal Connector Terminal
  1. Engine "ON" (Warm up condition).
HO2S (Bank1, Sensor2) connector 2 (ground) HO2S (Bank1, Sensor2) connector 1 (signal) Fig.1
HO2S (Bank1, Sensor2) connector 3 (power) HO2S (Bank1, Sensor2) connector 4 (heater)
G13291681Courtesy of KIA MOTORS AMERICA, INC.

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