[bouch26]

My SES (Service Engine Soon) light came on and I went to Autozone for a free reading, which they did happily did very quickly. The code is P0135, which from what I can tell means that I need to replace my Front O2 Sensor Heater (Bank 1). Does anyone know if I need to do this right away or if I can drive my car for a few weeks this way. Also, any chance this could be caused my putting regular gas instead premium gas into the car and going back to the premium will fix the issue?

thanks for any insight.

 

[metro273]

If you want to improve your mpg, replace that faulty O2 sensor ASAP!
The fuel you use has NOTHING to do with that O2 going bad, so don't worry about that...

 

[bouch26]

Thanks for your feedback. I figured that I would need to get it replaced according to what I've read, but so far mpg has not declined one bit. Do you know if there is any harm in waiting to replace the O2 sensor. I've also read that to maybe detach the battery to reset the light and see if it goes off again, thoughts on that? thanks again.