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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
Thanks for the input. Found PCV elbow loose at engine. Pushed back on and PO174 went away but PO171 came on. System too lean bank 1 this time. Truck does appear to be running much better though. Thanks
Check engine light has been on with code P0174 System too lean (Bank 2) Is this oxygen sensors if so how many. Starting to have idling problems. Thanks for any help
