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International Automotive Technicians Network
Re: P0171 at idle and off idle
Posted to Technical Discussion Forum on 2/23/2014

hey Paul

100 percent sure it is not the maf, it was swapped with a known good.

100 percent sure it is not the a/f sensor, needed to be changed anyway, the one that was in it, was nasty, customer said he is getting better fuel mileage since that was changed... Login to read more.