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. Earlier post.). Audi says the approach is sufficient to meet Euro 6 particle limits without the use of a particulate filter. Earlier post.) smooth running. Resources.
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