System Inspection

■ Check leakage or clog of air 

1. Check contamination, clog and installation of gasket.
   • Any damage or installation of throttle body gasket.
   • Any damage or installation of throttle body gasket.
   • Clog or contamination of intake manifold and injector by foreign materials.
   • Contamination and open stuck between surge tank and PCSV by foreign materials.
   • Any damage or contamination of HO2S(S1) by foreign materials
2. Has a problem been found?

   YES 

   • Go to "Check Fuel Line  " as follows.

   NO 

   • Repair or replace as necessary and then, go to VERIFICATION OF VEHICLE REPAIR  procedure.

■ Check Fuel Line 

1. Check Clog, contamination and installation of Fuel Line as follows.
   • Connection for each connectors in Fuel Line.
   • Damage, interference and installation of vacuum hose connected to Fuel Line
   • Bend, Leakage and squeeze of pipe in Fuel Line.

   YES 

   • Go to "Check Fuel Pressure  " as follows.

   NO 

   • Repair or replace as necessary and then, go to VERIFICATION OF VEHICLE REPAIR  procedure.

   ■ Check Fuel Pressure 

   1. IG KEY "OFF".
   2. Connect fuel pressure gauge on the fuel filter with fuel pressure gauge adaptor.
   3. Start engine again and measure fuel pressure.

   Specification:  495 ~ 505 kPa (4.9 ~ 5.1 kgf/cm, 71.8 ~ 73.2 psi)

   4. Is the fuel pressure normal?

      YES 

      • Go to COMPONENT INSPECTION  procedure.

      NO 

      • Check any damage of fuel return hose or pipe.
      • Check any stuck of the valve in the fuel pressure regulator.
      • Repair or replace as necessary and then, go to 'Verification of Vehicle Repair" procedure.