... We are the professional manufacturer of CNG/LPG ECU in China,our products have passed ECER110/R67 ... certificate We can supply CNG/LPG ECU kitsFeatures:1.Applying to 3-cylinders, 4-cylinders, ... engine, it can make communication with the original vehicle ECU.2.OBD function, it can diagnose the failure ... gas tank and automatically switch. CNG/LPG ECU kit (AC 300) for sequential system