System Inspection

Check clog on Exhaust gas system
1. Key "OFF".
2. Check clog on muffler or catalyst converter.
3. Is Exhaust gas system OK?
  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 for contamination or sticking on the ISCA assembly.
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. Disconnect a fuel pump relay.
3. Engine start and wait until engine stop. and then key "OFF".
4. Connect a fuel pump relay.
5. Connect fuel pressure gauge using the correct adapter.
6. Start the engine and record fuel pressure.
  1. Specification : Approx. 3.5 kg/cm²
    
    Fig 1: Checking Fuel Line Pressure
    Courtesy of HYUNDAI MOTOR CO.
7. Is the fuel pressure normal?
  YES
  1. Go to "COMPONENT INSPECTION " procedure.
  NO
  1. Check clog or stuck of the valve in a fuel pressure regulator.
    Check the supply pressure of fuel pump.
    
    Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.