04-06-2007, 06:49 AM
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#110
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AF Newbie
Join Date: Mar 2007
Location: Goffstown, New Hampshire
Posts: 3
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Re: Codes 171 & 174 TSB # 03-16-1 update
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Originally Posted by pperrichetti
I am the owner of a 2001 Ford Windstar LX. The check engine light came on at about 78,000 miles. I checked the OBD and retrieved codes P0171 and P0174. I thoroughly cleaned the throttle body and MAF sensor. I cleared the codes. It took about one month, and the codes are back. I have read it could be from the intake manifold runner control, or TSB 3-16-1. Is there any way to narrow it down? My extended warrany expired at 75,000 miles. I never had a problem with the check engine light until now.
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Follow this ( http://leckemby.net/windstar/windstar01.html)
Just replace a few gaskets and those bolts with the big plastic sleeves and the light code goes away. It is not the MAF. I tried that also and the light went out for a few hundred miles only.
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