Audi using supplementary port fuel injection to address particulates from gasoline direct injection
Green Car Congress
JANUARY 14, 2014
In part-load operation, the indirect injection supplements direct gasoline injection to improve fuel economy and to reduce the output of particulates from the engine. Source: MECA, Ford Motor Company. A choke is built into the flush connection to minimize the pulsations transferred to the MPI fuel rail by the HPP. Earlier post.)
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