... (ECU,reducer,injector,Switch,Map Sensor,pipe) YSGAS,CNG/LPG Injection system kits We are the professional manufactuer of cng/lpg conversion kits ... . ECU6. Filling charge valve7. other tubes8. Spare parts9. Rail injector (ECU,reducer,injector,Switch,Map Sensor,pipe)YSGAS,CNG/LPG Injection system kits