Diesel fuel could not be atomized well by carbon deposit in the injector nozzle, abnormal preheating system and poor fuel quality.
If diesel fuel could not be atomized well at cold start, Exhaust fumes (excessive black, white smoke) would be discharged and poor acceleration, engine hesitation occur.
Case 1 : In case of abnormal preheating system.
Go to "Preheating system inspection" procedure.
Case 2 : In case of carbon deposit in the injector nozzle.
Go to "Injector nozzle cleaning" procedure.
Case 3 : In case that preheating system and injector nozzle are normal after inspecting.
Go to "Poor quality fuel inspection" procedure.
