Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Matrix and 2003 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- Open or short in oxygen sensor circuit.
- Defective oxygen sensor.
- Defective air induction system.
- Improper fuel pressure.
- Defective injector.
- Defective ECM.