Which GM car originally came with a 3-wire 02 sensor? The one with the one black wire and two white ones?

Thanks

Steve

 

'94 "C" pickup had them (Chevy Silverado/GMC Sierra)

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'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors, Whatever chip I feel like burning,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
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'97 Bonneville SSE

 

93 Corvette with the four cam ZR1 had them. I got one through car quest for $69. I was suprised they had it in stock.