My dad had to take my 00 stang in while I was away and It failed CT emissions, My dad said he didn't get to watch, and the guy said he couldn't plug into the diagnostic port or something, does that even sound right? I only talked to my dad for about a minute since I have finals this week, I wasn't shooting any codes so he most likely failed my car on inspection, or didn't know how to use his machine and sniffed it,