... most important items of vehicle OBD systems. Misfire generator is a powerful device used for the development, ... diagnosis functions in the vehicle powertrain systems.Misfire Generator, the misfire generators developed by Beijing Unison Electronics ... thus cause the engine misfires.The main customers of Misfire Generator include General Motors, Delphi, MagnetiMarelli, Bosch,Continental, SAIC, SVW, PATAC ...