Hyundai Equus: Heated Oxygen Sensor (HO2S) Troubleshooting
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Engine Control/Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Troubleshooting
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Engine Control/Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Troubleshooting
| Signal Waveform |
Fig.1) The signal waveforms of front HO2S(the upper) and heater(the lower) at idle
Fig.2) The signal waveforms of rear HO2S(the upper) and heater(the lower) at idle
Fig.3) Typical waveforms of front HO2S(the upper) and rear HO2S(the lower).
Heated Oxygen Sensor (HO2S) Specifications
Specification
A/F Ratio (x)Output Voltage(V)RICH0.6 ~ 1.0LEAN0 ~ 0.4
ItemSpecificationHeater Resistance (x)Approx. 9.0 [21°C(69.8°F)]
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Heated Oxygen Sensor (HO2S) Schematic Diagrams
Circuit Diagram
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See also:
Schematic Diagrams
Circuit Diagram
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Special Service Tools
Special Service Tools
Tool (Number and name)IllustrationUse09880-4F000Hog ring clip installerHog ring clip installation
...
High Pressure Fuel Pump Repair procedures
Removal
In case of removing the high pressure fuel pump, high
pressure fuel pipe, delivery pipe, and injector, there may be injury
caused by leakage of the high pressure f ...
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