Rear O2 simulators... why would you need them?
Drifting
Joined: Jul 2002
Posts: 1,484
Likes: 0
From: Morgan Hill Ca.
The only thing the rear sensors do is check up on the cats condition. If you remove the cats, or go to long tube headers where the wires won't reach, than it is far easier to go with the Sims. If you are not going to do any extensive exhaust mods than you won't need the sims. If you want to go the sick bird route 
(Ill Eagle 
) and remove the cats for more noise or better flow than you will need the Sims.
(Ill Eagle ) and remove the cats for more noise or better flow than you will need the Sims.
Instructor
Joined: May 2003
Posts: 154
Likes: 0
From: Kansas City Kansas
If you install an "off road" pipe (eliminating your catalytic converters) you need to either install the O2 simulators which trick the computer into thinking you still have the cats, or you need to use LS1Edit (or a simliar PCM editing tool) to edit them out of the program and keep them from "throwing" codes.
In my case I installed the O2 sim's into the harness ocnections in the engine tunnel and used oil drain plugs (picked them up at Advanced Auto) to plug the bungs on the off road pipe.
Hope this clears it up!
Steve
In my case I installed the O2 sim's into the harness ocnections in the engine tunnel and used oil drain plugs (picked them up at Advanced Auto) to plug the bungs on the off road pipe.
Hope this clears it up!
Steve
Racer
Joined: Jul 2002
Posts: 378
Likes: 0
I used them when I installed my LG headers until I could get a tune and they kept me from throwing any codes. They're now for sale in the Parts section if anyone is interested.
http://forums.corvetteforum.com/show...post1548605887
http://forums.corvetteforum.com/show...post1548605887
Drifting
Joined: Jul 2002
Posts: 1,484
Likes: 0
From: Morgan Hill Ca.
Originally Posted by Speedtoys
would there be any advantage for these if you were running Long tubes with cats?
Ive heard that these help the car maintain the A/F ratio better than real sensors
Ive heard that these help the car maintain the A/F ratio better than real sensors
