Bosch 02 Sensor on 95

[cosmic_splatter]

Yes, bosch is saying you need the 4 wire for ca emissions. In my case, this is not true. I have a fed 4 wire. Here is their page. It's all good, I sent the old one back and have the 4 wire on order. I wonder why a fed vehicle has the 4 wire?

http://www.fixkick.com/bbs2/Suzuki-bbs/g..._52_37.png

ps. Yes, harness side has 4 wires.