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Which outcome occurs when rapid fuel injector valve actuation causes sustained oscillations in a vehicle's fuel rail?

A)Harmonic pressure wave amplification
B)Uniform fuel-air mixture enrichment
C)Minimized hot-start injection delay
D)Increased catalyst light-off efficiency

💡 Explanation

Harmonic pressure wave amplification results from resonant frequencies excited by the fuel injector’s rapid on/off action, because this action sets up standing waves and pressure spikes increase, therefore damaging/disrupting smooth fuel delivery rather than the alternatives relating to optimized burning.

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