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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
My check engine light is on. It reads system to lean bank 1 and bank 2. I have replaced all the O2 sensors, spark plugs, wires, idle air control valve and mass air flow sensor. The light will not turn off. What else could it be?
