I am asking for my dad so I am not exactly sure what problems his car has since I don't drive that one. His check engine light came on a while back and when he took it to get checked out; it came out as a bad O2 sensor, his mechanic said his car had 2 sensors and both needed to get replaced. He got both replaced and the light went off for about 3 days and then it came back on. The code is the same, bad O2 sensor. How can this be? The car is running fine, there doesn't seem to be anything wrong with it besides the pesky light. Why would the light still be on despite having the sensors replaced.
Friday, December 28th, 2012 AT 9:35 PM