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← TechnologyWhich outcome occurs when fuel injector backflow rate exceeds tolerances?
A)Reduced injector open duration
B)Increased risk of cavitation
C)Elevated exhaust gas temperature
D)Oscillating manifold intake pulsation✓
💡 Explanation
Oscillation increases because of intake manifold pressure waves created by imperfect pulse injections; the mechanism is fluid dynamic resonance interacting with the fuel rail. Therefore, intake pulsation increases rather than achieving stable fuel delivery because injector timing variations are exacerbated.
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