insufficient egr flow
I have a 110k '95 Ford Contour 2.0 4 cyl, and mainly do my posting in www.contour.org, but we seem to be out of ideas over there. I have the check engine code P0332 - Insuffient EGR flow. It just started. Learning of the many problems of this car from the contour.org site, I have done the following soon after buying this car 3 months ago:
new timing belt, serp belt
new EGR valve, IAC valve, DPFE sensor
replaced cracked vac lines
cleaned throttle body
replaced all filters
The car actually runs great but I would still like this CEL to go away. Since the EGR itself is new and has worked fine for two months before this CEL came on, I doubt that is the problem. The site recommended I clean the TB which I did, as well as the EGR passages behind the TB. I do not know what else to do, but this board has been helpful in the past so I am asking for any further ideas. Thanks all.