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#1
08-27-2004, 03:00 PM
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PO401 Code
I got a PO401 Code reading today from AutoZone.
Engine was running sluggish while cold. I read about cleaning the IAC from other posts on this board, so I did that and the sluggishness (is that really a word) has cleared up. However, CEL is still on, so I got the codes read today. The PO401 code refers to the EGR valve. Any suggestions on how to deal with this issue? The car is running great, but I want to get rid of the CEL so that I feel the problem has been addressed. Also, I've noticed references to the DPFE Sensor? What is that? Any help is appreciated. 
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#2
08-28-2004, 05:42 AM
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Replace the DPFE sensor for a P0401 code. I had it done under warranty in my '01 Windstar. Here's one link:
http://vcertt.org/news/10-03.pdf And another: http://rockledge.home.comcast.net/Ra...tage-Test.html
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