P0159: O2 Sensor Circuit Slow Response (Bank 2/Sensor 2): DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC Strategy	Monitor HO2S's response time	Poor connection Faulty HO2S Faulty ECM
Enable Conditions	The same conditions as P0420's enable conditions
Threshold value	The calculated response time is too long.
Diagnosis Time	One time during catalyst diagnosis
MIL On Condition	2 Driving Cycles