... ECU,switch) STAG300,CNG/LPG injection system kits 1.ECE-R110 Certification,2.1100-2500CC ... conversion kits which including the following parts:1. LPG regulator2. CarburetorSwitch3. High pressure tube4 ... of CNG/LPG ECU kits(AC300)1.It is one of the main components for the burning gas system,through collecting the fuel signal of ... , when the engine stopped the gas system will be cut off automatically. It ...