p0171 code now engine stalls

2000 3.8
ok i got my cel on code p0171
np remove code now when im driving come to a stop engine just fails?
starts back up np and sometimes does it again seems to do more when runs cold?
also noticed pully squeels ?

this all just started

any help would be appreciated

...and let me guess: You also sometimes hear engine pinging.

A common problem. The authoritative solution:

http://leckemby.net/windstar/windstar01.html

...and let me guess: You also sometimes hear engine pinging.

A common problem. The authoritative solution:

http://leckemby.net/windstar/windstar01.html

NO have not heard any pinging from engine i hear belt or pully squeal?:nono:

Interesting. I got the pinging side of the problem (but never did get a CEL). In any case, the isolator bolt problem is common on this engine. It's a reasonable DIY job.

Noisy pulleys are another question! Get a mechanic's stethoscope (cheap at Harbor Freight) to track down exactly where the noise is coming from.