Join Date: Aug 2006
Location: Indianapolis until Thanksgiving, then back to Portland, Oregon
Two on the driver side (left) and two on the passenger (right) side.
One before the cat (pre-cat) and one after the cat (post-cat).
The pre-cat sensors are easy to see.
One is under the AC compressor. The other is under the Alternator.
The post-cat sensors are harder to see and get to;
just follow the exhaust pipe down and you'll find them on either side of the tranny.
Most of the time the code will be 420 and/or 432.
These two codes relate to the post-cat sensors (which sounds like your issue).
My bet is that you will have one or both of these codes.
If you go to "Advance Search" and enter "p0420"
and select "Dodge Intrepid Second Generation Forums",
you can read up on all the different things people have learned over the years.
A couple things come to mind:
..Never change just one sensor. Change them in pairs, buying one pre-cat and one post-cat.
..Instead of changing a pair of sensors, use the non fouler trick on the post-cat sensor.
..(I am looking into installling non foulers on my current ride; 03 SXT)
And remember, the search function is your friend.
Last edited by tgs; 11-28-2012 at 12:20 PM.