haha alright, first off i didnt want to say "plug the bung" haha, anyway, with an o2 simulator, this is how you install it:

Notice that after the harness (the o2 snesor itself), it isnt even used becasue the signal wire (the whole purpose of the o2 sensor) is replaced by the o2 simulator. Becasue of this, could you just unplug the harness and pull the o2 snesor out, then plug the bung with a plug that i have? This would elminate wires and simplify things. Can i do this?

 

i have a b18 in my civic and am not running a front o2 sensor. i plugged it up and it runs fine and no engine light or loss of mileage

 

alright cool. I didnt think you'd lose milage, but do you have an aftermarket header and/or catalytic converter? And do you hvae an o2 simulator as well?

And i guess if somebody can't answer my first question (about removing the sensor totally), can anyone tell me what the 4th wire is in that diagram? From left to right it goes Signal, Ground, 12V, and ???. I'm thinking thats the heater wire to make the o2 sesnor last longer, am i correct?

 

im not possitive, but it might be a heater, u would ahve to ask some one else to be sure

 

i have pace setter headers and a high flow resonator instead of a cat. and i just put a bolt in the hole.

 

yeai have the plug for mine too, do you have an o2 simulator? Itd be surprising if you didnt get a CEL and a you didnt have an o2 simulator.

 

i dont know what a o2 simulator is i only have a bolt in the front one and i can garuntee no cel is on in my car iv had it that way 4 awhile

 

so i think i answered my own question ^ found that on anotehr site, but this one (unlike the first diagram) doesnt show if you splice the wires between teh harness and sensor, or the harness and the ECU. The first one shows between the harness and the ECU, anyone know if this is correct?

 

it shouldnt matter, the whole thing with putting it between the harness and the sensor would be it is going to be close to the exaust

 

true true, although the harness is in the engine bay, which means i could splice in between the sensor and the harness just a few inches from the harness (just which side?) Your right though, it shouldnt matter.