I am new and followed some of the information posted. I have a 2002 Rav4. Check engine light came on, I followed some of the posted instructions took it Auto Zone, they advised 02 sensor. I had the sensor replaced, but the engine light remained on. I took it back to make sure right sensor was replaced, the diagnostic test showed right sensor was replaced. However Auto Zone where I live advised they no longer carry the tool to reset my vehicle. I tried unplugging battery, light came back on later. Is there something I can do? Thanks
