HO2S Heater Circuit Bank 1 Sensor 3


I'm trying to find the location of that 02 sensor on my 96 Jimmy.
I found 2 I think on the passenger side under where the front door is and the other under where the back door is (not the rear door).
any help is much apreciated...

Thanks

There's 4 O2 sensors. Bank 1 is supposed to be the the one just in front of the catalytic converter. There's 1 just downstream of each exhaust manifold. There's 1 just before the cat and 1 just after.

Good luck!