John Wayne wrote:
If you had a ScanGaugeII you could pull the codes and reset them plus a whole lot more info, like trans temp, cylinder head temp, miles per gal., gals used and a whole lot more check it out. Have never replaced as O2 sensor and I just turned over 110,000. Could also be a loose gas cap.
Or if you have a smart phone or tablet, you can get an elm bluetooth for your ODBII connector and an app called torque all for less than $20 and do the same thing. But going to the auto parts store where they do it for free its the cheapest.