It's for an 84 s10 blazer, originally 2.8l engine swapped for a 3.4l, still stock 2BB carb. I was able to look up the o2 sensor that I need, but all's I can find are Bosch (#12014) and Denso (#234-1001) o2 sensors. I heard that the bosch's don't agree with GM at all, but how are the Denso's? I can't find the cross reference for the AC delco o2 sensors either, anybody have that part number or where to order one? Can't really find a good place to order AC delco parts. And should I be looking for the stock 84 2.8l or for the 93-95 Camaro 3.4l engine?

It's just a 1-wire sensor, so pretty straight forward swap. I can solder that wire correct? I just don't want to damage the new o2 sensor at all.

 

Seeing as how your original 2.8L was a carb motor, you would not have had an O2 sensor originally... The carb that originally came on your engine should have been completely manual with no electrical components. It was not until the feedback carb that was used in 85 that electronics came into play, IIRC...

 

That's wierd, cause I definitely have one, just checked it last week. And I'm getting terrible gas mileage so I figured that might be it? I know my carb has electric choke on it as well. Weird.

 

Try your local advance auto parts

 

That's the problem, all there is local to me is autozone, and they just carry crappy bosch. Nobody has the part # for these?

 

Are there any electronics on your carb?

 

It looks like a couple different wires go to the carb, I'll have to double check though. Should I try following the o2 sensor wire to see where it goes? Where would the computer be if I did have one? Thanks.