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 gasket between intake manifold and surge tank.
   • 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" procedure below.

   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" procedure below.

     NO 

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

■ Check Fuel Pressure 

1. Connect GDS to DLC (Data Link Cable).
2. Warm up the engine to normal operating temperature.
3. Monitor "Low Pressure Fuel Pressure" parameter on the "Current Data" with GDS.

   Specification:  500 ± 20kPa

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.