02 sensor is busted, should i replace or buy an s-afc, please help

[Laguna739]

Hey all, so i went to the track 3 days ago for high school drags, (got in top 64) but i was running open downpipe, and i think it broke my 02 sensor, on my apexi tt, it says that my 02 voltage is .55 at idle and low speeds, but as soon as i step on it, it immediately drops to .01 or 0, and its really freiken me out, cuz im afraid of how hot im going to run, but my question is, should i replace the busted o2 sensor for like 110 or buy an s-afc, or an s-afc II. i didn't know if i really needed my o2 sensors with an afc, so if you all could help out with your opinions. thanks.

 

[ChicagoGSX]

Replace the O2 sensor otherwise its going to be hard to tune the car, if possible at all.

 

[jpolizo]

Yeah, your ECU is going to be real unhappy without an O2 sensor; the AFC does not replace that.

 

[Bd1000Eclipse]

getting a safc will not solve your o2 sensor problem.. you need a new one!! i was up at HS drags too and bandi.. damn, alot of people!!!

 

[Laguna739]

Bd1000Eclipse i got 2 questions for you, howd you end up doing at the drags, and where and for how much did you get your afc-2, oh three i guess, what was your fastest time??