| Main Action |
- Sensor signal plausibility check with lean mixture during fuel cut off
|
- Poor connection or damaged harness
- HO2S contamination
- Faulty three way catalyst converter
|
| Prerequisite Condition |
- Downstream O2 Sensor operative readiness is detected.
- Integrated mass air flow since last fuel cut-off is greater than 500g.
- Integrated mass air flow since fuel cut-off begins is between 12g and 250g.
- Battery voltage is between 10V and 16V
|
| Threshold Value |
- Downstream O2 sensor signal voltage is higher than 0.2V.
|
| Diagnostic Time |
|
| MIL On Condition |
|