I'm new here, just bought my first 2002 Mustang v6 3.8. It has 87,000 miles and looks like its in great shape. I was looking at the car fax and it said it took the emissions test 5 times in a row, and then passed it? Just wondering your thoughts on this. Every thing is stock it looks like under the hood. I took it to get inspected and it passed every thing so I'm not really worrying about it I was just curious why that would happen and if its common?

Thanks