| DTC Strategy |
- Rich to lean response rate check
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- Leak in intake or exhaust system
- Faulty fuel system
- Front and rear HO2S connections revolutionizers.
- Poor connection or damaged connector
- HO2S contamination
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| Enable Conditions |
- Downstream O2 sensor operative readiness
- Downstream O2 sensor internal resistance is lower than 3kΩ
- Catalyst temperature model is higher than 400°C (752°F)
- Mass air flow is between10kg/h to 50kg/h
- Integrated O2 load at not rich to lean
- Downstream O2 sensor signal is higher than 0.6V at entry into fuel cut-off
- Battery voltage is higher than 11V and lower than 16V
|
| Threshold Value |
- Signal gradient from 0.6V to 0.3V at entering fuel cut off out of range (Average of signal gradient is lower than 1500mV/s)
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| Diagnostic Time |
- 3 valid fuel cut-off phases.
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| MIL ON Condition |
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