my engine light came on and I went to auto zone to see why? When they test it it came out to sbe the o2 senser. I had it changed and on my way home the light came back on
No, they won't. If anything, a soldier would want to know why some moron didn't follow the order of his superior.
Everybody knows here that erudite is not so erudite and just says stuff to piss people off. But no worries if trolling does it that is OK. I suppose it is better than smoking crack or something.
Try disconnecting the main battery connection for several minutes. This will reset the computer that makes that light come on.
I changed O2 sensors today then light came back on chances are you need to change plugs also as I did if your sensors were bad long enough it will foul out a spark plug I changed plugs now it runs great high speed interstate for an hr then stop and go for an hr now its running great gas mileage is back where it should be
Another fine diagnosis by Autozone. Bet they sold you a part, too. I need to know the vehicle year, make and model to even begin here. And the actual trouble code would help. The error with the O2 sensor is probably the result of a problem elsewhere in the intake or exhaust system.
