Could you use a certain ohm resistor spliced in at the rear O2 sensors much like the power wire or the TLB mod? I know they used to sell O2 Simulators to keep from throwing the CEL when you had gutted or no catalytic converters, but i've been told they are now illegal to sell. Only a small amount of ppl still make them and sell them. I was just curious if this could be done. I've never opened them up to see what was really inside..

 

I would imagine you could, but why would you when non-foulers are all of $5...

 

Doesnt Fastman sell some 02 sims?

I am custom tuned and I just had mine turned off. So even e/o non-foulers I dont have to worry about CELs...... ;-)