STAG300,CNG/LPG injection system kits(Poland)(cng fuel auto,cng regulator,cng mixer,ECU,switch) STAG300,CNG/LPG injection ... main components for the burning gas system,through collecting the fuel signal of the ECU control module which come from the ... standards, such as EU2, EU3, EU4 and over. (Poland)(cng fuel auto,cng regulator,cng mixer,ECU,switch)STAG300,CNG/LPG injection ...