So I have tried and tried to get my cel out which is due to a 3 inch exhaust and o2 sensors which cant get a reading even with a spacer. I decided its time to just use resistors as was suggested by the shop that had to fail my cars inspection so I could at least get a clear sticker.

Does anyone know how to do this and what I need to get (at radio shack from what Im told) I am also going to get a multimeter to make sure the wiring is good but the stealership never said that the wiring was bad but that I needed to replace both o2 sensors.

I kinda need a diy guide so I can test the plugs (have no idea what to test exactly) and the size of the resistors for the front and back if they are different. I know I probably dont need to do this to the front one and probably shouldnt but at this point I have no time to waste as I need to pass inspection next week. Ill spend some more time working on it after the fact.