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Home >> Kia >> 2009 >> Optima LX, 2.7 4 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTC Troubleshooting Procedures (1 Of 3) - 2.7L >> DTC P0153: O2 Sensor Circuit Slow Response (Bank 2/Sensor 1) >> General Information >> DTC Description

DTC Description

Checking output signals from HO2S under detecting condition, if ECM judges it's signals too slow, ECM sets P0153. The MIL (Malfunction Indicator Lamp) will illuminate when the fault remains for 2 consecutive drive cycles