Bruce Nunnally Posted February 11, 2017 Report Share Posted February 11, 2017 Need To Confirm Location. Of Bank1 Sensor2 Precast O2 Sensor 1997 4.6L 32 valve NorthStar V8 On Exhaust B4 Catalytic Converter. Or After Y on NorthStar 4.6L 32valve V-8 NorthStar On Straight Pipe. Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
barczy01 Posted February 11, 2017 Report Share Posted February 11, 2017 before converter Link to comment Share on other sites More sharing options...
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