On May 21, 4:53 pm, jcarpen...@gbcol.edu wrote:
> My Check Engine light is on and I think the O2 sensor is the reason
> but I am not sure.
> When Should I change it anyways.
don't change it till it needs it. If you're in the US you can take
your car to any Autozone store (and possibly others) and they will
check the computer code with their diagnostic tool and tell you in
most cases what's causing the check engine light.