| DTC Strategy |
- Check catalyst oxygen storage capacity
|
- Exhaust system
- S2
- Catalyst converter
- Out of range ECT sensor
- Exhaust manifold
- High fuel pressure
- Incorrect connection
- Misfire
- Injector
- EGR system
|
| Enable Condition |
- Catalyst temperature (model) is between 550 and 930°C (1022 to 1706°F)
- Engine coolant temperature is greater than 55°C (131°F)
- Engine speed is between 1300 to 3000rpm
- Vehicle speed is greater than 10.8km/h (3mph)
- Engine load is between 29 and 81%
- Barometric pressure is greater than 75kPa
- Canister load is less than 0.5
- No opening or closing of canister purge valve
- Normal auxiliary battery voltage (11 to 16V)
- Fuel trim active and lambda set point value is 1
- Oxygen sensor element resistance is less than 1kΩ
- Stable driving condition
- When the difference between the actual engine speed and the filtered engine speed is less than 320rpm
- When the difference between the actual intake air and the filtered intake air is less than 0.16g/rev
- When the difference between the actual lambda value and the filtered lambda value is less than 7%
|
| Threshold Value |
- Average malfunction index is less than 1
|
| Diagnostic Time |
- 25 fuel trim controller cycles
|
| MIL ON Condition |
|