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← TechnologyWhich outcome occurs when direct fuel injector solenoid fails closed in an internal combustion engine?
A)Increased engine knocking due to pre-ignition
B)Complete cylinder misfire due to fuel starvation✓
C)Elevated exhaust temperatures due to lean mixture
D)Reduced engine power in all cylinders equally
💡 Explanation
When the fuel injector is stuck closed, fuel cannot enter the cylinder because the solenoid cannot energize to open the valve, causing complete fuel starvation and misfire. Therefore complete cylinder misfire results, rather than knocking, high temperatures, or reduced power which require partial fuel delivery or incorrect timing.
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