We put several-hundred street and freeway miles on the Clevor engine before taking it for the dyno test. During the drives, the PMS’s data terminal is used to monitor key real-time engine data and program the PMS system. The display screen is essentially a window into the various adjustment tables and option switches of the PMS. Its buttons allow users to navigate through the menus and tables, and alter program values. Some people liken this device to a video-game controller.