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← TechnologyWhich outcome occurs when a turbocharger's compressor increases air density beyond engine's fuel injector capacity?
A)Engine knocking from lean air-fuel mixture✓
B)EGT reduction from more complete combustion
C)Oil cooler activation due to increased heat
D)Catalytic converter failure from rich fuel
💡 Explanation
When compressed intake air exceeds available injected fuel, the air-fuel mixture becomes lean, causing uncontrolled combustion and detonation, known as engine knocking. Therefore knocking results, rather than reduced EGT, cooler activation, or catalyst damage which would stem from rich conditions or overheating.
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