Which risk significantly increases when fuel injectors in a gasoline engine experience incomplete atomization?

💡 Explanation

When fuel injectors incompletely atomize fuel due to nozzle clogging or low pressure, larger droplets persist because the surface area for evaporation is reduced, leading to incomplete combustion and higher unburned hydrocarbon emissions, damaging the catalyst. Therefore, increased emissions and catalyst damage result, rather than misfire, lubrication issues, or coolant boiling.

• Which outcome occurs when soot accumulates excessively on a diesel engine's fuel injector nozzles?
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• Which outcome occurs when reverse bias exceeds avalanche breakdown voltage in a tuned IMPATT diode?