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171 Code bank 1 too lean, 03 4.6 EB 2WD
I am loosing my mind on this vehicle I have changed a lot of parts: intake gaskets, MAF sensor, and the big one Injectors. I have tested multiple ways from smoking it out, brake cleaner, propane, to soap and water with a pressurized system. I have checked my o2 sensors, voltage is normal. I...- FamilyFordforfour
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- Forum: 2nd Gen Ford Expedition Engine & Performance
