Reply to thread

Are you referring to the resistor O2 eliminator plugs ?  You must follow the O2 sensor leads up under the fuel tank .  Under there you will find where they plug into the harness . Unplug the O2 sensors and put the resistor plugs in their place .  If you are referring to the threaded blanking plugs , those plug the hole left when you remove the O2 sensor from the exhaust pipes .