DTC P0133 Ho2S Circuit Slow Response (Bank 1/Sensor 1): DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Comparison of O2 sensor lean/rich period with calculated period
|
- Leak in intake or exhaust system
- Faulty fuel system
- Front and rear HO2S connections reversed
- Contact resistance in connectors
- HO2S contamination
|
| Enable Conditions |
- Coolant temp. > 74°C (165°F)
- 400°C (752°F) < Catalyst temp, model < 900°C (1652°F)
- 5km/h (3MPH) < Vehicle speed < 180km/h (112MPH)
- Engine speed < 3400rpm
- 200 < Engine load (mg/rev.) < 700
- 11V < Battery voltage
- Stable driving condition
- Lambda regulation active
- Canister Purge Valve not in CLOSE state
|
| Threshold Value |
- Average Ratio between measured and maximum allowed frequency during 100 Lambda regulation cycles > 1
|
| Diagnostic Time |
- 100 lambda controller cycles
|
| Fail Safe |
- Reset lambda adaptation and fuel trim adaptation
- Front HO2S heater is controlled in open loop control
- EVAP Emission control function is controlled in minimum operation mode
|
| Mil On Condition |
|