DTC P0133 H02S Circuit Slow Response (Bank 1/Sensor 1): DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSES

Item	Detecting Condition	Possible Cause
DTC Strategy	Response rate	Poor connection leak or clog in intake air system Injector Fuel pressure B1S1 ECM/PCM
Enable Conditions	Engine speed 1800-2800 RPM Engine load 30-65% Exhaust gas temperature (model) > 450°C (842°F)
Threshold Value	Cycle period of B1S1 signal > 3 sec
Diagnostic Time	12 cycle
MIL ON Condition	2 driving cycle
* B1S1: upstream oxygen sensor/B1S2: downstream oxygen sensor