Does anyone know who makes O2 Simms, what manufacturer? I am looking to get some. Also my check engine light never came on after I got my Headers installed. I am not running cats. The car is running fine except after she heats up some, she idles slightly ruff; but not anything really noticable.
I never got it reprogramed or anything like that. Any ideas of why the check engine never came on?


Thanks,
Z28 Nick

 

What year is your car, what i did was had my pcm tuned for no rear o2 sensors, they sell the simulators in summit or jegs for a reasonable price,

Zach

 

It's a 96 Z28. I am running Hooker Long tubes and off road Y.

 

Why not just cash out the back O2's all together and get a computer tune, for that and your other mods? thats what i did

zach

 

Casper Electronics is who makes the sims. I got mine from Summit, and they worked for me.