compatbility with OBD, improve eningee performance . auto diagnostic.suit to LPG/CNG. suit to 3,4,5,6, ... kit suit to 3,4,5,6,8 cylinder EFI car . drive by oringal petrol singal not emulation singal . it is ... contion . Compatibility with the vehicles equipped with on-board diagnostics (OBD) systemsOptimization of fuel consumptionSelf calibratingAuto-diagnosticECR110, ISO15500 certificate pass Self ...