For some reason, my car used to pass inspection. As of a few years ago, I was told that the car could not be inspected because I can only have one monitor show "not ready", and I have two showing not ready. Catalyst and EGR. The EGR is gonzo, so it will never show ready, and the codes are apparently tuned to show as pending...so thats all good. After looking through some old paperwork, I noticed that since I bought the car, it has never shown the catalyst as ready but it passed. So they must have changed the inspection laws. Basically, is there anything while tuning the PCM that will disable the catalyst from completing its test?