Hyundai Santa Fe (TM): Engine Control System / Heated Oxygen Sensor (HO2S). Specifications

Specification
HO2S [Bank 1 / Sensor 1] [Euro-V]
Item
Specification
Heater Resistance (Ω)
2.5 - 4.0 [20°C (68°F)]

HO2S [Bank 1 / Sensor 1] [Except Euro-V]
A/F Ratio (λ)
Output Voltage (V)
RICH
Approx. 0.9
LEAN
Approx. 0.04

Item
Specification
Heater Resistance (Ω)
3.3 - 4.1Ω [21°C (69.8°F)]

HO2S [Bank 1 / Sensor 2]
A/F Ratio (λ)
Output Voltage (V)
RICH
Approx. 0.9
LEAN
Approx. 0.04

Item
Specification
Heater Resistance (Ω)
3.3 - 4.1Ω [21°C (69.8°F)]

    Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter.

    Circuit Diagram Harness Connector [Bank 1 / Sensor 1] [Bank 1 / Sensor 2]

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Troubleshooting

    Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Compressor. Repair procedures

    Removal 1. If a compressor is available, the air conditioner is operated for a few minutes in the engine idle state and then the engine is stopped. 2. Disconnect the negative (-) battery terminal.

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