Visual Check

Inspect visually/physically the following items:
- Air cleaner filter element for excessive dirt or any foreign objects
- Intake system restriction
- Exhaust system restriction
- Engine mechanical problem
- Sludged throttle body
Have any problems been found?
YES
- Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Clear DTC and Test-drive under enable conditions above-mentioned. After the test, If this DTC is set, go to "ETC TEST " procedure. If not, troubleshooting is completed.