Incompetent tech couldn't get his machine hooked up to my car. All he had to do was to take the cord from his machine and plug it into my vehicle and make sure the connection was secure but that must have been too much effort. He told me there was a problem with my car because his machine wouldn't connect. went down the street to a different smog place and was able to get it done inmediately. Obviously there was nothing wrong with my car. Avoid this business at all costs.