all i know is when i ran without my primary o2, my car ran like i put water in the gas tank, it would sputter when i went to go, and would sputter unless i was at 1/4 throttle or more. hooked it back up, runs like a champ i don't recommend it.

 

exactly what mine did.. well, is doing right now cause im too lazy to weld that bung into my header.. LOL i get horrible gas mileage too and im starting to get sick everytime i smell gas cause i smell it so much

 

My car ran fine without it, possibly even better... Only thing that would be noticeable is gas mileage... But my gas mileage sucks either way....

Josh- I think you had a bigger problem than just an O2 because I have never heard of that happening just by disconnecting an O2 sensor....

 

:shrug: all i know is when i got it hooked back up, the problem went away........i tried IACV, fuel filter, fuel pressure, MAP, TPS, throttle cable, idle screw.....now it works, and i'm not complaining