System Inspection

Check air leakage
1. Check contamination or installation of Gasket.
  - Check throttle body gasket.
  - Check gasket between intake manifold and surge tank.
  - Check contamination or clog by foreign material of gasket between intake manifold and injector.
  - Check contamination or open stuck resulting from foreign material between surge tank and PCSV.
2. Is there any air leakage?
  YES
  - Repair or replace as necessary and then, go to VERIFICATION OF VEHICLE REPAIR .
  NO
  - Go to 2.
Check exhaust system for clogging
1. Check exhaust system.
  - Clogged or broken muffler.
  - Broken catalyst.
2. Is the exhaust system clogged?
  YES
  - Go to 1.
  NO
  - Repair or replace as necessary and then, go to VERIFICATION OF VEHICLE REPAIR .
Check exhaust system for clogging
1. IG "OFF".
2. Remove air hose between throttle body and airflow sensor.
3. Check if throttle valve is stuck by foreign material.
4. Is the throttle valve normal?
  YES
  - Go to COMPONENT INSPECTION .
  NO
  - After getting rid of foreign material, check that throttle valve is normal. And check for proper operation.
    If the problem is corrected, replace ETC and then go to VERIFICATION OF VEHICLE REPAIR .
- Procedure of ETS Initialization
  1. Erase the trouble codes on ECM.
  2. Turn the ignition key off and keep this condition until the main relay is turned off. (It will take 10sec.)
  3. Turn ignition key on more than 1second to record the throttle motor position on the EEPROM.