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Old 05-14-2007, 12:40 AM
e_powers e_powers is offline
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Re: 01 ranger codes p0172 and p0174

if the cel is just on and it runs ok then it probably is the oxi sensors which need to be changed around 70,000- 100,000 it most likely is the oxi sensors.

if it runs a little lousy it can still be the oxi sensors but i would first try cleaning the maf with a electric cleaner. do the oxi sensors. then replace maf if that dont help. then move on to the other two.
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