System Inspection
Exhaust system Inspection
1. Visually/physically inspect the following conditions:
- Exhaust system between HO2S and Three way catalyst for air leakage, restriction and damage.
- Damage and for loose or missing hardware:
2. Was a problem found in any of the above areas?
Rear HO2S Inspection
1. Visually/physically inspect the rear HO2S for the following conditions:
- Ensure that the HO2S is securely installed. (Pigtail and wiring harness not making contact with the exhaust pipe)
- Check for corrosion on terminals
- Check for terminal tension (at the HO2S and at the PCM)
- Any road damage
2. Was a problem found in any of the above areas?
TWC Inspection
1. Visually/physically inspect the three-way catalyst (TWC) converter for the following damage:
- Severe discoloration caused by excessive temperature
- Dents and holes
- Internal rattle caused by a damaged catalyst
2. Also, ensure that the TWC is a proper original equipment manufacturer part.
3. Was a problem found?