Assassin

iTrader: (3)

I may have some seriously bad cloged up cats, I'm wondering if I remove the rear o2's if it will just turn on the ses light or will the car be tuneing itself differently, or just not run, what will happen if there is no cats and the rear o2's are just unplugged? I couldnt find anything w/search, thanks

wrencher

iTrader: (2)

The rear O2's are solely for monitoring the catalysts performance & nothing else.

Assassin

iTrader: (3)

so w/ them unpluged it will just turn the ses light on and thats all?

wrencher

iTrader: (2)

Yep that would be the only thing, if you want just get O2 simms or tuning.
Then it wont set catalyst inefficency codes.

Assassin

iTrader: (3)

thanks dude