Originally Posted by OblivionLord
On their website they sell both front and rear O2 sensors. I only know the one thats in the back of the engine. Where is this front O2 sensor?
BTW.. their cheapest O2 sensor for my year 98 is $46.
The primary O2 sensor is pre-cat, whereas the secondary O2 sensor is post-cat.
If a new O2 sensor doesn't get rid of the code, you need to check the wiring for shorts or opens.