Kia Carnival (2009+). Manual — part 49

• High pressure leakage
• Fuse faulty
• Fuel quality / presence of water
• Low pressure fuel circuit sealed
• Sealed fuel filter
• Cam and Crank signals missing simultaneously
• EGR valve blocked open
• Bug software or hardware fault not detected

• Intermittent fault connection
• Catalytic converter sealed or damaged
• Oil suction (engine racing)
• Low pressure fuel pump faulty
• High pressure pump faulty
• Faulty ignition key
• Gasoline in fuel

(SYMPTOM 12) ENGINE JUDDER

Possible Cause

• Run out of fuel
• Fuel return hose of injector cut
• Incorrect state of the electrical pack devices
• The compensation of individual injector not adapted
• EGR valve blocked open
• Fuel filter not adapted
• Air ingress in the low pressure fuel circuit
• Fuel quality / presence of water
• Sealed fuel filter
• Intermittent fault connection
• Harness resistance increased

• Glow system faulty
• Engine compression too low
• Fuel return hose of injector sealed
• Valve clearance
• Low pressure fuel pump faulty
• Injector washer not adapted, forgotten, doubled
• Carbon deposit on the injector (sealed holes)
• Needle stuck (injection possible over a certain

pressure)

• Injector jammed open
• Gasoline in fuel
• Bug software or hardware fault not detected

(SYMPTOM 13) LACK OF POWER

Possible Cause

• The compensation of individual injector not adapted
• Accelerator position sensor blocked
• Incorrect state of the electrical pack devices
• EGR valve blocked open
• Air inlet circuit open
• Air filter sealed
• Oil level too high/too low
• Catalytic converter sealed or damaged
• Turbo charger damaged

• Sealed fuel filter
• Leakage at the injector
• Fuel return circuit of the pump sealed
• Fuel return hose of injector sealed
• Engine compression too low
• Injector not adapted
• Carbon deposit on the injector (sealed holes)
• Valve clearance

(SYMPTOM 14) TOO MUCH POWER

Possible Cause

• EGR valve blocked closed (noisy engine)
• The compensation of individual injector not adapted

• Oil suction (engine racing)
• Bug software or hardware fault not detected

(SYMPTOM 15) EXCESSIVE FUEL CONSUMPTION

Possible Cause

• Fuel return hose of injector cut
• Leakage at the Inlet metering valve
• Leakage at fuel temperature sensor
• Leakage at the spacers
• High pressure leakage

• Incorrect state of the electrical pack devices
• Oil level too high/too low
• Fuel quality / presence of water
• Catalytic converter sealed or damaged
• Turbo charger damaged

• Air inlet circuit open
• Air filter sealed
• The compensation of individual injector not adapted
• EGR valve blocked open

• Engine compression too low
• Injector not adapted
• Bug software or hardware fault not detected

(SYMPTOM 16) OVER SPEED ENGINE WHEN CHANGING THE GEAR BOX RATIO

Possible Cause

• Accelerator position sensor blocked
• The compensation of individual injector not adapted
• Intermittent fault connection
• Clutch not well set

• Oil suction (engine racing)
• Turbo charger damaged
• Injector not adapted
• Bug software or hardware fault not detected

(SYMPTOM 17) EXHAUST SMELLS

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
• Bug software or hardware fault not detected

(SYMPTOM 18) SMOKES (BLACK, WHITE, BLUE) WHEN ACCELERATING

Possible Cause

• 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
• Gasoline in fuel
• Bug software or hardware fault not detected

(SYMPTOM 19) FUEL SMELLS

Possible Cause

• Fuel pump hose supply cut
• Fuel return hose of injector cut
• Leakage at the Inlet metering valve

• Leakage at fuel temperature sensor
• Leakage at the spacers
• High pressure leakage

(SYMPTOM 20) THE ENGINE COLLAPSES AT TAKE OFF

Possible Cause

• Accelerator position sensor blocked
• Incorrect state of the electrical pack devices
• Air filter sealed

• Catalytic converter sealed or damaged
• Clutch not well set
• Intermittent fault connection

• Inversion of low pressure fuel connections
• Fuel filter not adapted
• Fuel quality/presence of water
• Air ingress in the low pressure fuel circuit
• Sealed fuel filter

• Drift of the rail pressure sensor not detected
• Inlet metering valve contaminated, stuck, jammed
• Gasoline in fuel
• Bug software or hardware fault not detected

(SYMPTOM 21) THE ENGINE DOES NOT STOP

Possible Cause

• Faulty ignition key
• Oil suction (engine racing)
• Bug software or hardware fault not detected

(SYMPTOM 22) DIFFERENT MECHANICAL NOISES

Possible Cause

• Buzzer noise (discharge by the injectors)
• Clip broken (vibrations, resonance, noises)
• Incorrect state of the electrical pack devices
• Catalytic converter sealed or damaged
• Air inlet circuit open

• Bad flanging of the injector
• Clutch not well set
• Turbo charger damaged
• Valve clearance

Fuel System

Engine Control System

Fuel System