3.
Is Throttle Plate being held open with excessive carbon deposits?
YES
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
▶ Go to "Air Leakage Inspection" procedure.
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
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
▶ Go to "Air Leakage Inspection" procedure.
Visually/physically inspect the air leakage in intake/exhaust system as following items,
If OK, go to next step
If NG, repair as necessary and go to "Verification of Vehicle Repair" procedure.
-Vacuum hoses for splits, kinks and improper connections.
-Throttle body gasket.
-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.
Check for air leakage in EVAP. Purge control valve.
Remove the manifold side vacuum hose from the EVAP canister purge valve.
Using a hand vacuum pump apply specified vacuum(Approx. 15 in, Hg) to the manifold side of the valve.
Does the valve hold vacuum?
YES
▶ Go to next step as below.
NO
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
