| DTC Strategy |
- Rationality check, stuck lean (oscillation check)
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- Poor connector connection
- HOS2 (Bank1, Sensor2)
- Blocking of intake system
- Fuel leakage in injector
- Improper fuel pressure
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| Enable Conditions |
- Battery voltage is greater than 10.7V
- Oscillation check
- Required lambda: lambda = 0.8 for 8s
- Downstream O2S voltage is less than 0.70V for 95s
- Closed loop fuel control "ON"
- Catalyst temperature (model) is between 350 and 925°C (662 and 1697°F)
- Mass airflow is greater than 25kg/h
- EGT around downstream O2S (model) is greater than 350°C (662°F)
- Downstream O2S voltage (readiness for operation of downstream O2S) is between 0.4 and 0.5V
- Signal inactivity suspicious error is detected
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| Threshold Value |
- Downstream O2S voltage is less than 0.70V
- If all secondary parameters met then fuel system open loop control executed: lambda = 0.8 for 8s
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| Diagnostic Time |
- 10s (once per driving cycle)
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| MIL ON Condition |
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