System Inspection

Check clog on Exhaust gas system
1. Key "OFF".
2. Check clog on muffler or catalyst converter.
3. Is Exhaust gas system O.K.?
  YES
  1. Go to " 2 Intake air system check" procedure.
  NO
  1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Intake air system check
1. Check leakage on Intake air system
  Check clog of air-cleaner.
  
  Check deterioration or contamination on throttle body and gasket.
  
  Check contamination, damage, stuck or clog on intake manifold, hoses, PCSV, ISCA and injectors.
2. Is there any problem?
  YES
  1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
  NO
  1. Go to " 3 Fuel line pressure check" procedure.
Fuel line pressure check
1. Key "OFF".
2. Fuel pump relay.
3. Engine start and wait until engine stop. and then key "OFF".
4. Install fuel pump relay.
5. Connect fuel pressure gauge using the correct adapter.
6. Start the engine and record fuel pressure.
  1. Specification : Approx. 3.5kg/cm² (343.2KPa, 50psi)
    
    Fig 1: Checking Fuel Line Pressure
    Courtesy of KIA MOTORS AMERICA, INC.
7. Is the fuel pressure normal?
  YES
  1. Go to "COMPONENT INSPECTION " procedure.
  NO
  1. Check the supply pressure of fuel pump.
    Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.