Ok, I have searched as much as I can, (don't have internet at home, have to be quick at work), My 2007 TL-S has been behaving very inconsistently with regards to gas mileage the past few months. High as 25 mpg, which had been normal, low as 20. Nothing has changed in my habits or travels. I do not have a check engine light, but my diagnostic "tool" in the navi shows that I have a P0174 code which I am assuming is my 02 sensor. So, can I reset this and see if it comes back or does this have to be done with an OBDII tool or dealer? Based on my mpg experience and my experience with Honda's, I'm assuming I have a bad 02 sensor, but I wanted to see if I could reset and actually throw a code. Can anyone refer me to a procedure or offer me some advice? Thanks, jb
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