[jparis]

I have a 98 windstar with 77k miles. I was having problems with it stalling as I came to a stop.
While looking for the cause, I found that the PCV hose had disentigrated. I replaced the hose & valve, cleaned & tested the IAC and checked all of the vacuum lines since I had the cowling off.

I did have DTC P0171 & P0174. I cleared the codes with the scanner and they have not come back so far. Could the bad hose/PCV valve have caused these codes?

The van runs okay while driving but still idles very low-kind of rough while in gear. In park or neutral it seems fine although a bit rough.

I have seen many posts on cleaning the EGR ports and I'm wondering if these might be the culprit. It doesn't look like an overly difficult job but I'd like to rule out as much as possible before taking on something like this.

Any ideas? Any help would be greatly appreciated.

Joe