Which risk increases when fuel injectors in a diesel engine experience dribbling at low engine loads?

💡 Explanation

When diesel fuel injectors dribble fuel, incomplete combustion arises because the fuel doesn't atomize properly, bypassing the optimal air-fuel mixture, creating a surplus of unburnt hydrocarbons. Therefore increased hydrocarbon emissions result, rather than high exhaust temp, bearing failure, or cylinder oscillations, which originate from differing combustion issues.

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