O2 simulator, what are the ups and downs. I'm planning to install a set headers, cut-outs and dual exhaust on my 2002 HD. Does the O2 simulator accurately adjust A/F as if there were a cat on the truck?

 

i have a set of them, alls they do is plug in line with the rear set of 02 sensors, what they do is trick the pcm into thinking that the cats are working fine. the sensors arent there to read a/f ratio, thats what the first 2 right behind the manifolds are there for. the ones you are trying to trick are behind the cats. as far as i know, i dont think there are any draw backs to using them.

 

thanks for the information. what part of Texas are you from? Do you race and if so where?

 

Hey retread71,


I'm from Midland. I drive the Black '01. Have we met?


-Chance

 

Sup ChanceB, I'm the guy who showed you that the red ones are faster!! Haha. later.

 

NM

 

Is that you John? I only know one Red Lightning!

 

I'm from irving, not but a few miles from dallas, i occasionally go out to ennis or yellowbelly (sp?)

 

so how many o2 sims would one need?


thanks

 

wow this was dug up from WAAYYY back. i know someone that used them. i thought you needed one "simulator" for each O2 sensor. but i could be wrong.

 

to my understanding is that the lightning has 4 cats and 4 o2 sensors so if i want to remove the cats how many 02 sims would i have to buy? or better yet are the first set of cats before or after the first set of o2 sensors?



thanks

 

Best to have a tuner reprogram the ecu and turn the rears off