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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
First of all HI all glad to be here.
I have a 99 ranger 4x4 super cab 4dr with the check engine light on and the codes are PO171 and PO174 which I have found out to be System too lean for PCM to Correct. What is involved to correct this is there an adjustment or is the PCM bad.. any help would...
