Check Exhaust sytem.
Visually/physically inspect the following conditions:
- Exhaust system between HO2S and Three way catalyst for air leakage
- Damage, and for loose or missing hardware:
Has a problem been found in any of the above areas?
YES
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
▶ Go to "Component Inspection" procedure.