Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
- Exhaust manifold with front catalyst and exhaust front pipe with rear catalyst or both.
- Gas leakage in exhaust system.
- Defective air-fuel ratio (A/F) sensor.
- Defective heated oxygen sensor No. 2 (bank No. 1 sensor No. 2).