Has anyone even tried to gut the cats and put the simulators in? Should I just plug in the O2 sensors and deal with a SES light??

I reset the computer for like 10 minutes and still have the same problem? Is it a back pressure problem or an O2 problem???

Any help is greatly appreciated.
Thanks
Nick

 

i jus ditched the cats and the air pump, im just gonna convert to OBD1 an do it that way more money now, less trouble down the road