STAG300,CNG/LPG injection system kits(Poland)(cng fuel auto,cng regulator,cng mixer,ECU,switch) STAG300,CNG/LPG injection ... system,through collecting the fuel signal of the ECU control module which come from the original car, and integrate water temperature ... , such as EU2, EU3, EU4 and over. (Poland)(cng fuel auto,cng regulator,cng mixer,ECU,switch)STAG300,CNG/LPG injection ...