Hello, I’m Mark. When I purchased my newest car, it was sputtering and dying within a few minutes of starting up. I suspected the fuel system, but had to perform diagnostic procedures to make sure. I spent hours tracking down the problem using diagnostic tools and techniques suggested by the manual. I created this site to help others avoid this long process by offering diagnosis tips and tricks. I want people to be able to diagnose their own car problems or at least understand the process performed by their mechanics. Please feel free to visit my site anytime to learn more.