I had someone replace my O2 sensor today, but the check engine light is still on. Should I be doing something like disconnecting the battery like I have read, or take it to Auto Zone to have them reset something??????????

Please help!

Jen

Welcome to AF!!

Was the light on before the sensors were changed? If the answer is yes take the car to autozone have them scan the codes and if only the O2 sensor codes comes up have them clear the codes for you. If the light wasn't on then there may be another issue. If they find another code write down the number an post and someone will help you.