HO2 Sensor Help

CamaroMike said:

Hello, Have 98 Camaro 3.8L. Need B1S1 heated Oxygen Sensor.
Been searching. Have two questions.
1. A four wire (square) connector means it's heated? Some sites do not indicate.
2. How long are HO2 wires for this 98 camaro? Some sites sell different wire lengths.
Thanks for your time.
Mike

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Bank 1 Senor 1 is the sensor before (upstream) the Catalytic Converter. The 3.8 has 1 sensor for driver side and 1 sensor for the passenger side. Yes, heated sensor. Below is that sensor. Same sensor for both driver and passenger.
ACDelco Oxygen Sensor AFS109 | O'Reilly Auto Parts (oreillyauto.com)

The 3.8 has just 1 sensor after the Catalytic Convertor.
ACDelco Oxygen Sensor AFS123 | O'Reilly Auto Parts (oreillyauto.com)