unplugging 02's ??
 

What should happen if I unplug my 02's? Car is running rich trying to find out why?

I believe the car would run constantly in open loop. The stock open loop fuel table is rich to begin with so it might be kind of hard to tell if it makes any difference. Most of the time, a bad O2 sensor will throw a code. Is your car throwing any codes? SES light?

Car will run in open loop and will throw codes (O2 heater and O2 error codes)