'97 3.5L Check Engine Light, bad EGR?

[Jims451]

The other day the check engine light came on on my 1997 Chrysler Concord 3.5L. (with 104,000+ miles.)

using the key on-off-on-off-on test, I got codes:
12 - battery disconnected
32 - EGR circuit
55 - End of Codes

As far as I know, the battery has not been disconnected for several years?
I think the EGR circuit? is bad. The FSM shows a strange EGR setup, has anyone ever worked on this problem?

[OmniRocket]

Hi,
I have a friend that has a Chrysler Concorde LXI with about 60,000 miles and he has the same codes and his engine light stays on also. If you findout want is wrong with yours please let me know, so that I can help him. Just reply here and I will be notifed.
Thanks,
Randy

[451Mopar]

Sorry for the long time before replying, I just got back from Vacation.
The EGR valve itself was OK, but there is a pressure control unit with an electronic connection that controols the EGR valve. Anyhow the Diphram of this control unit was leaking. The Dealer only sells both EGR peices as a "kit" for a bit more than $100.
I replaced the EGR and control and disconnected the battery ground to clear the codes. That code went away, and a few days latter I got another code for a mis-fire. The spark plugs had over 50,000 miles on them (Auto-Lite Double Platnum) and they really needed to be replaced. Replacing the plugs fixed the problem for another week, but I got the same code again. When I changed the spark plugs the wires looked like they needed to be replaced too, and measured on the high side when I did a resistance check, but I ran the old wires since the dealership was closed.
I finally went and got new wires ($70) and I decided to get a new coil pack also ($100) so everything on the ignition system is new.
That fixed that problem, and so far the check engine light has not came back on.