just wanted to know of any common problems related to code P0171
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1996 Toyota Tacoma Question: diagnostic code P0171
Bret Bodas from RepairPal Test Shop, March 29, 2010, 18:17Master
Here is a ton of info about the P0171 Code: http://repairpal.com/OBD-II-Code-P0171-and-P0174
Answer #2mastertech6371 March 30, 2010, 16:46Master
look for any vaccuum leaks. that and the pcv valve are the most common.