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Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
2002 Sport 64k miles. Had rough idle while sitting still, cold and warm. P0171 and P0174, bank 1 & 2 lean codes. Ran fine at speed. Replaced MAF and fuel filter. Cleaned IAC with electronics cleaner. No help. Saw info in forum about intake manifold gaskets (ONP 00M12), so I took it to Ford. They...