2004 Ford F-150 Q&A

2004 Ford F-150 Question: code bank 1 and 2.so i replaced oxygen sensers, now bank 3 and running lean,

while driving,giving gas it is bogging down and missing, get's a little better and does it again. have had it in the shop with no luck, just cost a lot of money. -
Answer 1
Possibly very small debris in mass air flow sensor . -