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← TechnologyWhich risk increases in a fuel injection system when fuel temperature exceeds its Reid Vapor Pressure (RVP) specification?
A)Fuel pump cavitation causes engine stall✓
B)Injector nozzle coking reduces flow
C)Fuel line expansion bursts fuel rail
D)Catalytic converter poisoning stops regulation
💡 Explanation
When fuel temperature exceeds RVP, vapor lock and cavitation can occur in the fuel lines and pump because the fuel vaporizes, reducing the pump's efficiency and potentially causing it to stall the engine. Therefore, pump cavitation results, rather than coking, line bursts, or poisoning, which arises from different fuel properties or systems failure modes.
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