Hi all,
Sometime over the summer, the "check engine" light in my 1998 Camry started coming on every once in a while. Sometimes it would stay on for a few days, other times just a few minutes.
My mechanic had a look at it in September and said I needed a new O2 sensor (error code was: P1133 Bank 1, Sensor 1). I asked him if the intake was too high or too low, but he said his technician had reset the code before he had a chance to look at it and he couldn't remember what it said.
My mechanic was pressing me to replace the sensor ASAP, but a friend of mine suggested I should wait and see if the light comes on again. The "check engine" light has not come on since it was reset two months ago.
I don't want to spend $250 + labour on an O2 sensor I don't need. How important is it for me to change it?