ok if i send my pcm to someone to get the cat o2 sensors deleted can the emmissions people find this out by anything other than seeing the o2 not hooked up? and if i get them deleted can i still screw the o2 sensors in the cats just so they can see the o2 sensor in the cat? or would i have problems if i get the o2s deleted and screw them in the cats? thanks

 

i have my rear o2 sensors in the holes in my y-pipe but i have o2 simulators connected to the rear o2 plugs...the reason is i just needed something to cover the holed which for some reason are in my catless y-pipe.. in any case i dont see leaving unconnected o2s in the exhaust being a problem...

i dont really understand y u want to tune out the rear o2s though if u have cats...usually people tune them out so they dont get an SES light after removing or gutting the cats?? fill me in...