Which outcome occurs when an automotive gasoline direct injector (GDI) experiences nozzle coking?

💡 Explanation

When GDI injectors experience nozzle coking, carbon deposits restrict the nozzle because high temperatures cause polymerization of fuel components, reducing fuel flow and distorting the spray pattern. Therefore, reduced fuel flow and abnormal spray results, rather than pressure increase, temperature elevation, or compression decrease which have other originating causes.

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