DTC Information: DTC Detecting Condition
| Item |
Detecting Condition |
Possible Cause |
| 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 Conditions |
- Engine speed 1320~3000 rpm
- Engine load 20~75 %
- Catalyst temp. (model) 600~850 °C (1112 ~1562 °F)
- Fuel system status: Closed loop
- Time after engine start greater than 260 sec
- Delta temp of catalyst less than 40 °C (104 °F)
|
| Threshold Value |
- Ratio of Actual OSC to Model OSC less than 1.0
|
| Diagnostic Time |
- 4 Cycles of Lambda Setpoint steps (Rich to Lean)
|
| MIL On Condition |
|
* S1: upstream oxygen sensor/S2: downstream oxygen sensor