2004 Chrysler Pacifica emissions

GENETHECARGUY

MEMBER
2004 CHRYSLER PACIFICA
116,000 MILES

Replaced egr valve and 02 sens bank 1 sens 1 tried to erase codes will not says no communication however all other LIVE data is available. Codes po403 &po032. Check eng light will not turn off even in key on eng off mode is computer bad?

Friday, September 13th, 2013 AT 6:38 PM

3 Replies

TY ANDERSON

MECHANIC
684 POSTS

I don't think your vehicle's computer is bad I would try another scan tool first. Most auto parts suppliers will scan for code for free or erase codes. If the replacement parts corrected the issue the vehicle's computer will run it's self tests and after some miles it will recognize the failure is no longer there and will automatically turn off the check engine light. Talk to you soon, TY

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Saturday, September 14th, 2013 AT 1:00 AM

MIKE WILBURN

MEMBER
1 POST

There is a very common problem with early Pacificas and several other year models of other Chrysler cars and vans that causes the codes P0032 and P0403 to set and its not due to a failing HO2S sensor or a bad EGR solenoid. It is in most cases caused by a bad ground to the Exhaust Gas Recirculation (EGR) solenoid. The ground you need to check, at least on the Pacificas, is the G100 ground located on the left frame rail below the battery. Make sure its clean and tight with no signs of corrosion. They are known to break and come loose.

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Saturday, January 7th, 2017 AT 2:00 PM