Hmmm, I thought an EGR valve was closed at idle. A clogged EGR should then
not be noticeable until acceleration. In fact the way I test my EGR is to
take it off and cover the two holes with duct tape and temporarily reinstall
it. then idle it see if there's any change.
Van

"Joe" > wrote in message
...
> We have a winner. It was a clogged EGR valve.
>
> Thanks,
> Joe
>
> "B. Peg" > wrote in message
> ...
> > EGR valve.
> >
> > B~
> >
> >
>
>