Ford Expedition F150 Pickup F250 P0171 System Too Lean Bank 1 - P0174 System Too Lean Bank 2

Repair video on diagnosing and repairing codes P0171 - system too lean bank 1, and a P0174 - system too lean bank 2 on a FORD EXPEDITION 1999, FORD F-150 1999-2002, FORD F-250 1999, FORD F-250 SUPER DUTY 2000-2002.