Hey bro...sorry if i confused you here is the simple....
Since your car was made on the later date you would use:
before Pre cat part # 13115 after precat # 13201
On a V6 duratech, the car has 2 Pre Cat;'s on the exahust manifold, before it goes to the Main cat under the car.
There are 4 o2 sensors on a v6. 1 before each Pre-cat and one after each pre cat for a total of 4.
if its the one after the pre cat you will use part number
13201. The other number is for the sensor before the pre cat.
Now...Bank 1 means its the precat next to your fire wall.
Bank 2 means the pre-cat next to your radiator.
so if the code say "pre-cat,bank one" the you would change the bottom O2 sensor (or cat...ford codes are not very accurate)on the precat next to the fire wall.
I hope that clarafied things...if you want me to explain over the phone, PM me and i will give my number. Writing is so hard to explain things.
ROZ
