It's not a scam. And yes, any given make or model on any give day of the year can have a problem. Man and machines can't make a perfect machine. And no matter how well you do or don't take care of your Honda, it was bound to have a problem eventually. You don't mention the year, make, or model of your car. Give use more detail on what is going on. Have you had it scanned and cleared? Could have been a temporary situation. If it's a 94-97 Accord, I can pretty much narrow the problem down given the codes. Lord knows I had problems with mine.