Robert, I went through the same garbage like yourself and it is, pardon my french, bloody frustrating and not just a little. I even had a few bad words to say to the car itself, like "Wish I never bought ya!", but that lasted only minutes. I regrouped my thoughts and ran the car very hot for an hour driving to another inspection station. It passed! I live in BC, Canada and I have read front page articles about the huge surplus that is racked in from this pollution control. Here, not all parts of BC require it, just the metropolitan areas that are covered in smog. Our cost is $25 for each inspection. Now, after running hot and putting in some of that chemical, I believe it is just diesel fuel, and increasing the idle setting, my car passed just fine. That only lasted for one year as I discovered that collector cars do not require Air-Care inspections, so I slapped on collector plates and away with pollution control inspections. Please, do not get me wrong! The car still needs to run good according to specs but at least you can diagnose on your terms and spend the money gradually if there is a real problem.I leave this info with ya!! If you are just trying to get by, getting the car on the road, why not! Expensive repairs are sometimes a pain and we try inexpensive ways and for some of us that's fine. I have blamed it on their equipment but that really does not help you. Hope you get it Aircared soon!!! Bye John E. 10250