... design, with SAE J1939 interface, and has many J1939 interface EFI engine ECU (ENGINE CONTROL UNIT), engine speed, temperature, the oil temperature, oil ... Has the SAE J1939 interface, which can be directly EFI engine control through the interface. Measure true effective value, suitable for ... the power is not lost. In does not have the engine can also J1939 external temperature, pressure and oil level ...