| DTC Strategy |
- Check responsibility (signal amplification) of the upstream HO2S
|
- Poor connector connection
- Leak intake system
- Injector
- Fuel pressure
- HO2S (Bank1, Sensor1)
|
| Enable Conditions |
- Vehicle speed is greater than 20km/h (12.43MPH)
- Barometric pressure is greater than 75kPa
- Temperature of the front HO2S tip is greater than 720°C (1328°F)
- Time of the upstream HO2S heating is greater than 70s
- Temperature of the downstream HO2S tip is greater than 620°C (1148°F)
- Time of the downstream HO2S heating is greater than 80s
- Difference between lambda setting value and actual value is below 0.25
- Engine coolant temperature is greater than 50°C (122°F)
- Output voltage of downstream HO2S is greater than 0.6V
- Engine torque is higher than 10 to 20Nm or below 100 to 200Nm
- Engine load is greater than 9 to 11% or below 35 to 42%
- Catalyst temperature is between 470 and 930°C (878 and 1706°F)
- Engine speed is between 832 and 3168RPM
- Driving conditions
- Difference between actual engine speed and filtered engine speed is below 320RPM
- Difference between actual intake air flow and filtered intake air flow is below 130mg/stk
- Difference between actual lambda and filtered lambda is below 7%
- A mount of intake air is higher than 2g
- Activate lambda control
|
| Threshold Value |
- Ratio of model value and actual value is greater than 1
|
| Diagnostic Time |
|
| MIL ON Condition |
|