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hellon I was trying to get info from forum on my po170 code & 173. + just replaced maf 4 days . runs good now but after about 15-20 miles the cel comes on. always same two codes. I have checked for vacum leaks with starting fluid but nothing. so don't thinks its a leak. 1as thinking since its a remaned maf I might have gotten a defective onen but I keep reaading about the adaptions need to be reset and if not light will come back. what and how is this reset . could this be my problem . please enlighten me on this restting adaption. I thought after truck would reset itself.
