All OBDII cars have at least 2 O2 sensors. Take it to a service shop or
dealer who can test them as throwing parts at it will get very expensive....


<courir26@yahoo.com> wrote in message
news:1122760657.106566.133130@f14g2000cwb.googlegr oups.com...
> My daughter has a 99 Civic LX, California Model (LEV I think)?
>
> Does this car have one or two O2 sensors?
>
> She got a CEL, Autozone says their scanner cannot differentiate between
> a front or a rear O2 sensor failure.
>
> The front sesnor is about a year old.
>
> Are there front and rear sensors, or is the Auto Zone dude all wet?
>
> The rear sensor price is about $250 (if there is such a thing).
>
> Tom
>