System Inspection

■ Exhaust System Inspection 

1. Check the exhaust system for an exhaust leak near the engine.
2. Was an exhaust leak found?

   YES 

   • Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Go to next step below.

■ Air Leakage Inspection 

1. Visually/physically inspect the following:
   • 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 

   • Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Go to next step below.

■ Visual/Physical Inspection 

1. Visually/physically inspect the following:
   • Check for corrosion on terminals
   • Check for terminal tension (at the HO2S and at the PCM)
   • 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 

   • Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Go to next step below.