System Inspection

Exhaust System Inspection

1. Check the exhaust system for an exhaust leak near the engine.
2. Was an exhaust leak found?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to next step as below

Air Leakage Inspection

1. Visually/physically inspect the following items:
-Vacuum hoses for splits, kinks and improper connections.
-Exhaust system between HO2S and Three way catalyst for air leakage
-EVAP system for leakage
-PCV hose for proper installation
2. Was a problem found in any of the above areas?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to next step as below

Visual/Physical Inspection

1. Visually/physically inspect the following items:
-Check for corrosion on terminals
-Check for terminal tension (at the HO2S and at the ECM)
-Check for damaged wiring
-Check the HO2S ground circuit for a good connection
-Check front and rear HO2S for connections being reversed.
2. Was a problem found in any of the above areas?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to next step "Component Inspection" procedure.