4 cylinder,DT,CNG/LPG ECU (Poland )(cng/lpg conversion kits,cng/lpg inject system) 4 cylinder,DT,CNG/LPG ECU Engine Control Unite ECU11. CNG sequential system 2. CNG fuel ECU 3. CNG ECU kit TECHNICAL ... .ECU with wiring harnessesB.SwitchC.MAP sensorD.Water Temperature SensorsE. CNG gas Temperature Sensors (Poland ,cng/lpg conversion kits,cng/lpg inject system)4 cylinder,DT,CNG/LPG ECU ...