3.
Is Throttle Plate being held open with excessive carbon deposits?
YES
a.
Replace or repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
a.
Go to next step as below
Visually/physically inspect the following items. Repair or adjust as necessary and go to next step.
- Check that the Accelerator Cable is not sticking or moving sluggishly.
- Check Accelerator Cable free play [0.040~0.120 in. (1.0~3.0 mm)].
Remove Intake Hose and inspect Throttle Plate for excessive carbon deposits.
Is Throttle Plate being held open with excessive carbon deposits?
YES
Replace or repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
Go to next step as below
Visually/physically inspect the air leakage in intake/exhaust system as following items,
-Check for throttle Plate being held open with excessive carbon deposits
-Vacuum hoses for splits, kinks and improper connections.
-Throttle body gasket
-Positive crankcase ventilation valve for improper installation, damaged o-rings and malfunctioning .
-Gasket between intake manifold and cylinder head
-Seals between intake manifold and fuel injectors
-Exhaust system between HO2S and Three way catalyst for air leakage
Was a problem found in any of the above areas?
YES
▶ Replace or repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
▶ Go to next step as below
