The Chrysler Minivan Fan Club Forums banner

05 Pacifica P0420 code

4K views 3 replies 2 participants last post by  Mdouglas1980 
#1 ·
Just got this code fory pacifica, it is a touring AWD model.
I recently did have to replace the upper intake plenum, drove it about 100 miles, freeway/surface streets, to make sure it went through the drive cycle. I also just put a new air filter in it too.

I was looking for a good place to start after making sure all of the lines in the plenum are not leaking and making sure the air box is sealed well.

Any help would be appreciated. Thanks
 
#2 · (Edited)
Chrysler Pacifica P0420 Code Symptoms. The P0420 code in a Chrysler Pacifica will often be thrown one of your oxygen sensors are not functioning properly. Typically, the code will be triggered by the upstream oxygen sensor (before the converter).
P0420 CHRYSLER - Catalyst System Efficiency Bank 1 https://www.autocodes.com/p0420_chrysler.html
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top