my expedition is giving me codes P0171 and P0174 which means system too lean on bank1 and bank 2
I actually had 3 codes when i took to shop they replaced intake gaskets done coolant
flush and replaced # 2 sparkplug cause it was cracked do from leak of intake gasket and
that was the 3rd code i mentioned P0302 and it fixed the feel of it driving well today i
turned my defrost/heat on and smelt antifreeze and my front heat blows cold air but rear
heat works wonderful please any suggestions