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← TechnologyWhich outcome results when a common rail diesel injection system experiences injector nozzle coking?
A)Increased NOx emission from lean pockets✓
B)Decreased engine power from fuel oversupply
C)Elevated coolant temperature from late combustion
D)Reduced particulate matter from complete burning
💡 Explanation
When injector nozzle coking occurs in a diesel engine, carbon deposits restrict fuel flow creating lean pockets with excess air leading to higher localized temperature promoting NOx formation. Therefore increased NOx emission results, rather than fuel oversupply or reduced particulates which require different injection characteristics.
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