System Inspection

Visual Inspection

Inspect visually/physically the following items

Air cleaner filter element for excessive dirt or any foreign objects

Intake system restriction

Exhaust system restriction

Vacuum line leakage

Intake air leak after throttle body

Damaged

Damaged ETC

Sludged throttle body

Engine mechanical problem

2. Have any problems been found?

Good 

• Go to "Verification of Repair " procedure.

No Good 

• Clear DTC and test drive under the enable conditions. After the test drive, if this DTC is set. go back to "Basic Inspection " If not, troubleshooting is completed.