My CX 9 started spitting / sputtering and losing RPM's, then the check engine light came on. These were the codes that it kicked out:

P0171 System Bank 1 Run Lean
P0174 System Bank 2 Run Lean
P0300 Random Misfires

I know the first two codes were my spark plugs. I replaced the old spark plugs but when I tried starting the vehicle, it would turn over but the RPM's barely got above 1000 and the vehicle shuts off. I'm going to change my air and fuel filter next but my issue is finding the fuel filter. I've heard a lot of fun stories on how to get to it, but I figured I try and ask online before I tear my vehicle apart. Thank you in advance for any help / advice offered.

 

Fuel filter is intank.