One problem related to emission control has been reported for the 2002 Ford Windstar. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Ford Windstar based on all problems reported for the 2002 Windstar.
Getting lean code p0171 and p0174. Dealer analyzed and from what I can tell it's TSB 03-16-1 (NHTSA sb# 16920) I have searched the internet (as you can) and it's a widespread problem (I know 2 other people personally who may have it). It is my belief that there should have been (or should be) a recall on this defect. In my case, the van will lose rpm's, then "rev" up on cold startup. When it does this, the van executes a "jerking" motion which to me could be dangerous. In other cases, it will stall or nearly stall at traffic lights.