Enable Criteria
The following enable criteria is for HO2S bank 1 sensor 1, and bank 2 sensor 1.
- Engine speed is 500-3000 RPM.
- Engine run time is less than 3 minutes.
- Mass airflow is 4-30 grams/sec.
- Battery voltage is 9-18 volts.
The following enable criteria is for HO2S bank 1 sensor 2.
- Engine cold start is determined.
- Average mass airflow during warm-up is less than 30 grams/sec.
- Battery voltage is 10-18 volts.