my 2003 escaladeis setting 3 codes po101 po171 po174 is maf po101 setting off the 02 sensors also also it will idle rough at times or even die at timesat low idle
My check engine light came on, so I took it to adavnce auto parts to get it read and these 2 codes appeared PO101 and PO171, I know it has something to do with the Mass Air Flow. I cleaned out the mass air flow sensor but these codes still appear. What do i need to do, to get rid of these...