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 " 2 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 " 3 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: 429 ~ 469 kPa (4.38 ~ 4.79 kgf/cm, 62.3 ~ 68.1 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.