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Taking into account the demands for renewable and clean fuels and therefore the success of Ethanol use in Brazilian Flex-Fuel vehicles, the development of a new Ethanol-Diesel System would be also of big interest for mobility engineering. Previous investigations have already studied the Ethanol effect on Diesel engine combustion but applying different kinds of solution. In general they have investigated the combustion behavior regarding the Ethanol-Diesel emulsified in tank or the Ethanol mono-point fumigated and controlled mechanically. From the market and emissions laws point of view these solutions are not so convenient considering the advance of technology on modern vehicles. This work relates the development of a new prototype to investigate the Ethanol multi-point injection controlled electronically in the air intake manifold of a Common Rail HSDI Diesel engine.