Using Voltmeter/Hi-Scan
WARNING: This page is about a different car, the 2005 Hyundai Accent and 2004 Hyundai Accent. However, it is still accessible from the selected car via links, so may be relevant.
HEATED OXYGEN SENSOR OUTPUT VOLTAGE SPECIFICATIONS
| Check item | Check condition | Engine condition | Test specification |
|---|---|---|---|
| Heated oxygen sensor output voltage | Warm-up | When decelerating suddenly from 4000 RPM | A. 200mV or lower |
| When engine is suddenly raced | B. 600~1000mV |
NOTE:
If you release the accelerator pedal suddenly after engine running about 4000 RPM, fuel supply will stop for short period and the O2 sensor service data in the HI-SCAN will display values in the A range.
When you suddenly press on the accelerator pedal down, the voltage will reach B range.
When you let the engine idle again, the voltage will fluctuate between ranges A and B. In this case, the O2 sensor can be determined as good.
When you suddenly press on the accelerator pedal down, the voltage will reach B range.
When you let the engine idle again, the voltage will fluctuate between ranges A and B. In this case, the O2 sensor can be determined as good.