If I remember right there will be a fuse...on the left side dash...under a small panel. It will be a minifuse and will say (cluster) I believe.
That code is for a lean condition on bank 1. This is not a one thing fixes all deal. It is set because the bank 1 O2 sensor is reading to much O2 in the exhaust stream of bank 1. You could have a vacuum leak...could be around intake or on throttle body. Check around for this. Look for a broken vacuum line...these are plastic and can crack. Could be clogged fuel injector...run some seafoam through it...or better yet, take it to a mech and have a fuel intection cleaning done. These are normally about 100 bucks. It will do wonders...ecspecially if you have over 100,000 on it. The system using a push pull type setup to clean the entire system. Cleans carbon off injectors, valves, tops of pistons and such. Works VERY well and will normally improve power and milage...but its not cheap. There isn't a "fuel filter" per say on those. They use a screen...it has a simple sock on the end of the pump pickup in the tank...not serviceable without a pump. Could be faulty O2...but Before you put ANY money in it...check all over for vacuum leaks...check really good...you may not be able to hear it either. Have the fuel system cleaned. New fuel is not good for our vehicles. Alot of trouble through ethanol.
Keep us posted and we'll try to help.
"But if serving the Lord seems undesirable to you, then choose for yourselves this day whom you will serve, whether the gods your ancestors served beyond the Euphrates, or the gods of the Amorites, in whose land you are living. But as for me and my household, we will serve the Lord.” Joshua 25:15