Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
- Improper positive crankcase ventilation (PCV) hose connection.
- Improper PCV hose.
- Open or short in A/F sensor (bank No. 1 sensor No. 1) circuit.
- Defective A/F sensor (bank No. 1 sensor No. 1)
- Defective air induction system.
- Defective fuel system.
- Defective injector.
- Gas leak on exhaust system.
- Defective ECM.