Hyundai: Engine D4FA. Manual - part 38
GENERAL
FLA -23
Problem
Possible cause
EGR valve blocked open
Oil suction (engine racing)
Turbo charger damaged
Oil level too high/too low
The compensation of individual injector not adapted
Catalytic converter sealed or damaged
Bad flanging of the injector
Injector washer not adapted, forgotten, doubled
Injector not adapted
Carbon deposit on the injector (sealed holes)
Needle stuck (injection possible over a certain pressure)
Injector jammed open
Exhaust smells
Bug software or hardware fault not detected
The compensation of individual injector not adapted
EGR valve blocked open
Air filter sealed
Fuel quality / presence of water
Oil level too high/too low
Turbo charger damaged
Catalytic converter sealed or damaged
Oil suction (engine racing)
Air heaters out of order
Engine compression too low
High pressure leakage
Intermittent fault connection
Bad flanging of the injector
Injector washer not adapted, forgotten, doubled
Injector not adapted
Carbon deposit on the injector (sealed holes)
Needle stuck (injection possible over a certain pressure)
Injector jammed open
Petrol in fuel
Smokes (black, white, blue)
when accelerating
Bug software or hardware fault not detected
Pump hose supply cut
Fuel return hose of nozzle holder cut
Leakage at the Fuel pressure regulator valve
Leakage at fuel temperature sensor
Leakage at the spacers
Fuel smells
High pressure leakage