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← TechnologyWhich outcome occurs when particulate filters excessively back-pressure modern diesel fuel injection?
A)Increased fuel injector wear✓
B)Optimal combustion chamber temperatures
C)Reduced NOx formation increases
D)Improved turbocharger efficiency results
💡 Explanation
Increased particulate filter back-pressure forces the engine's ECU to increase fuel injection pressures via the common rail, causing accelerated piezoelectric actuator wear because the piezoelectric effect becomes hyperactive under those conditions. Therefore, injector wear increases, rather than improved efficiency or reduced emissions, under back-pressure conditions.
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