diagnostic code P0171 on 1996 Toyota Tacoma

just wanted to know of any common problems related to code P0171

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers
Here is a ton of info about the P0171 Code: http://repairpal.com/OBD-II-Code-P0171-and-P0174
look for any vaccuum leaks. that and the pcv valve are the most common.